[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 1.224

1.224   ! nicm        1: /* $OpenBSD: tty.c,v 1.223 2017/01/12 00:19:32 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 *);
1.219     nicm       51: static void    tty_check_fg(struct tty *, const struct window_pane *,
                     52:                    struct grid_cell *);
                     53: static void    tty_check_bg(struct tty *, const struct window_pane *,
                     54:                    struct grid_cell *);
1.207     nicm       55: static void    tty_colours_fg(struct tty *, const struct grid_cell *);
                     56: static void    tty_colours_bg(struct tty *, const struct grid_cell *);
                     57:
1.208     nicm       58: static void    tty_region_pane(struct tty *, const struct tty_ctx *, u_int,
                     59:                    u_int);
1.214     nicm       60: static void    tty_region(struct tty *, u_int, u_int);
1.212     nicm       61: static void    tty_margin_pane(struct tty *, const struct tty_ctx *);
1.214     nicm       62: static void    tty_margin(struct tty *, u_int, u_int);
1.207     nicm       63: static int     tty_large_region(struct tty *, const struct tty_ctx *);
1.210     nicm       64: static int     tty_fake_bce(const struct tty *, const struct window_pane *,
                     65:                    u_int);
1.207     nicm       66: static void    tty_redraw_region(struct tty *, const struct tty_ctx *);
                     67: static void    tty_emulate_repeat(struct tty *, enum tty_code_code,
                     68:                    enum tty_code_code, u_int);
                     69: static void    tty_repeat_space(struct tty *, u_int);
                     70: static void    tty_cell(struct tty *, const struct grid_cell *,
                     71:                    const struct window_pane *);
                     72: static void    tty_default_colours(struct grid_cell *,
                     73:                    const struct window_pane *);
1.210     nicm       74: static void    tty_default_attributes(struct tty *, const struct window_pane *,
                     75:                    u_int);
1.1       nicm       76:
1.90      nicm       77: #define tty_use_acs(tty) \
1.131     nicm       78:        (tty_term_has((tty)->term, TTYC_ACSC) && !((tty)->flags & TTY_UTF8))
1.212     nicm       79: #define tty_use_margin(tty) \
1.214     nicm       80:        ((tty)->term_type == TTY_VT420)
1.90      nicm       81:
1.132     nicm       82: #define tty_pane_full_width(tty, ctx) \
                     83:        ((ctx)->xoff == 0 && screen_size_x((ctx)->wp->screen) >= (tty)->sx)
                     84:
1.192     nicm       85: void
                     86: tty_create_log(void)
                     87: {
                     88:        char    name[64];
                     89:
                     90:        xsnprintf(name, sizeof name, "tmux-out-%ld.log", (long)getpid());
                     91:
                     92:        tty_log_fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0644);
                     93:        if (tty_log_fd != -1 && fcntl(tty_log_fd, F_SETFD, FD_CLOEXEC) == -1)
                     94:                fatal("fcntl failed");
                     95: }
                     96:
1.185     nicm       97: int
1.136     nicm       98: tty_init(struct tty *tty, struct client *c, int fd, char *term)
1.1       nicm       99: {
1.30      nicm      100:        char    *path;
                    101:
1.185     nicm      102:        if (!isatty(fd))
                    103:                return (-1);
                    104:
1.30      nicm      105:        memset(tty, 0, sizeof *tty);
1.22      nicm      106:
1.9       nicm      107:        if (term == NULL || *term == '\0')
1.220     nicm      108:                tty->term_name = xstrdup("unknown");
1.1       nicm      109:        else
1.220     nicm      110:                tty->term_name = xstrdup(term);
1.30      nicm      111:        tty->fd = fd;
1.136     nicm      112:        tty->client = c;
1.30      nicm      113:
                    114:        if ((path = ttyname(fd)) == NULL)
1.185     nicm      115:                return (-1);
1.30      nicm      116:        tty->path = xstrdup(path);
1.108     nicm      117:        tty->cstyle = 0;
1.107     nicm      118:        tty->ccolour = xstrdup("");
1.30      nicm      119:
1.1       nicm      120:        tty->flags = 0;
1.212     nicm      121:
1.1       nicm      122:        tty->term_flags = 0;
1.212     nicm      123:        tty->term_type = TTY_UNKNOWN;
1.185     nicm      124:
                    125:        return (0);
1.31      nicm      126: }
                    127:
1.88      nicm      128: int
1.31      nicm      129: tty_resize(struct tty *tty)
                    130: {
                    131:        struct winsize  ws;
1.88      nicm      132:        u_int           sx, sy;
1.31      nicm      133:
                    134:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
1.88      nicm      135:                sx = ws.ws_col;
                    136:                if (sx == 0)
                    137:                        sx = 80;
                    138:                sy = ws.ws_row;
                    139:                if (sy == 0)
                    140:                        sy = 24;
                    141:        } else {
                    142:                sx = 80;
                    143:                sy = 24;
1.31      nicm      144:        }
1.114     nicm      145:        if (!tty_set_size(tty, sx, sy))
1.88      nicm      146:                return (0);
1.31      nicm      147:
                    148:        tty->cx = UINT_MAX;
                    149:        tty->cy = UINT_MAX;
                    150:
1.212     nicm      151:        tty->rupper = tty->rleft = UINT_MAX;
                    152:        tty->rlower = tty->rright = UINT_MAX;
1.88      nicm      153:
                    154:        /*
                    155:         * If the terminal has been started, reset the actual scroll region and
                    156:         * cursor position, as this may not have happened.
                    157:         */
                    158:        if (tty->flags & TTY_STARTED) {
                    159:                tty_cursor(tty, 0, 0);
1.214     nicm      160:                tty_region_off(tty);
                    161:                tty_margin_off(tty);
1.88      nicm      162:        }
                    163:
1.114     nicm      164:        return (1);
                    165: }
                    166:
                    167: int
1.212     nicm      168: tty_set_size(struct tty *tty, u_int sx, u_int sy)
                    169: {
1.114     nicm      170:        if (sx == tty->sx && sy == tty->sy)
                    171:                return (0);
                    172:        tty->sx = sx;
                    173:        tty->sy = sy;
1.88      nicm      174:        return (1);
1.1       nicm      175: }
                    176:
                    177: int
1.166     nicm      178: tty_open(struct tty *tty, char **cause)
1.1       nicm      179: {
1.220     nicm      180:        tty->term = tty_term_find(tty->term_name, tty->fd, cause);
1.21      nicm      181:        if (tty->term == NULL) {
                    182:                tty_close(tty);
                    183:                return (-1);
                    184:        }
                    185:        tty->flags |= TTY_OPENED;
1.1       nicm      186:
1.149     nicm      187:        tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_TIMER);
1.1       nicm      188:
1.196     nicm      189:        tty->event = bufferevent_new(tty->fd, tty_read_callback, NULL,
                    190:            tty_error_callback, tty);
1.1       nicm      191:
                    192:        tty_start_tty(tty);
                    193:
1.148     nicm      194:        tty_keys_build(tty);
1.1       nicm      195:
                    196:        return (0);
                    197: }
                    198:
1.207     nicm      199: static void
1.194     nicm      200: tty_read_callback(__unused struct bufferevent *bufev, void *data)
1.67      nicm      201: {
                    202:        struct tty      *tty = data;
                    203:
                    204:        while (tty_keys_next(tty))
                    205:                ;
                    206: }
                    207:
1.207     nicm      208: static void
1.194     nicm      209: tty_error_callback(__unused struct bufferevent *bufev, __unused short what,
                    210:     __unused void *data)
1.66      nicm      211: {
                    212: }
                    213:
1.208     nicm      214: static void
1.127     nicm      215: tty_init_termios(int fd, struct termios *orig_tio, struct bufferevent *bufev)
1.1       nicm      216: {
1.128     nicm      217:        struct termios  tio;
1.33      nicm      218:
1.127     nicm      219:        if (fd == -1 || tcgetattr(fd, orig_tio) != 0)
1.33      nicm      220:                return;
1.1       nicm      221:
1.127     nicm      222:        setblocking(fd, 0);
1.34      nicm      223:
1.127     nicm      224:        if (bufev != NULL)
                    225:                bufferevent_enable(bufev, EV_READ|EV_WRITE);
1.66      nicm      226:
1.127     nicm      227:        memcpy(&tio, orig_tio, sizeof tio);
1.1       nicm      228:        tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
                    229:        tio.c_iflag |= IGNBRK;
                    230:        tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
                    231:        tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
1.169     jsg       232:            ECHOPRT|ECHOKE|ISIG);
1.1       nicm      233:        tio.c_cc[VMIN] = 1;
1.60      deraadt   234:        tio.c_cc[VTIME] = 0;
1.127     nicm      235:        if (tcsetattr(fd, TCSANOW, &tio) == 0)
                    236:                tcflush(fd, TCIOFLUSH);
                    237: }
                    238:
                    239: void
                    240: tty_start_tty(struct tty *tty)
                    241: {
                    242:        tty_init_termios(tty->fd, &tty->tio, tty->event);
1.1       nicm      243:
1.10      nicm      244:        tty_putcode(tty, TTYC_SMCUP);
1.1       nicm      245:
1.25      nicm      246:        tty_putcode(tty, TTYC_SGR0);
                    247:        memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
                    248:
1.76      nicm      249:        tty_putcode(tty, TTYC_RMKX);
1.90      nicm      250:        if (tty_use_acs(tty))
                    251:                tty_putcode(tty, TTYC_ENACS);
1.1       nicm      252:        tty_putcode(tty, TTYC_CLEAR);
                    253:
                    254:        tty_putcode(tty, TTYC_CNORM);
                    255:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      256:                tty_puts(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.121     nicm      257:
1.189     nicm      258:        if (tty_term_flag(tty->term, TTYC_XT)) {
1.191     nicm      259:                if (options_get_number(global_options, "focus-events")) {
1.162     nicm      260:                        tty->flags |= TTY_FOCUS;
                    261:                        tty_puts(tty, "\033[?1004h");
                    262:                }
1.212     nicm      263:                tty_puts(tty, "\033[c");
1.162     nicm      264:        }
1.1       nicm      265:
                    266:        tty->cx = UINT_MAX;
                    267:        tty->cy = UINT_MAX;
                    268:
1.212     nicm      269:        tty->rupper = tty->rleft = UINT_MAX;
                    270:        tty->rlower = tty->rright = UINT_MAX;
1.1       nicm      271:
                    272:        tty->mode = MODE_CURSOR;
1.20      nicm      273:
                    274:        tty->flags |= TTY_STARTED;
1.107     nicm      275:
                    276:        tty_force_cursor_colour(tty, "");
1.177     nicm      277:
                    278:        tty->mouse_drag_flag = 0;
                    279:        tty->mouse_drag_update = NULL;
                    280:        tty->mouse_drag_release = NULL;
1.128     nicm      281: }
                    282:
                    283: void
1.1       nicm      284: tty_stop_tty(struct tty *tty)
                    285: {
                    286:        struct winsize  ws;
                    287:
1.20      nicm      288:        if (!(tty->flags & TTY_STARTED))
                    289:                return;
                    290:        tty->flags &= ~TTY_STARTED;
                    291:
1.66      nicm      292:        bufferevent_disable(tty->event, EV_READ|EV_WRITE);
                    293:
1.1       nicm      294:        /*
                    295:         * Be flexible about error handling and try not kill the server just
                    296:         * because the fd is invalid. Things like ssh -t can easily leave us
                    297:         * with a dead tty.
                    298:         */
                    299:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
                    300:                return;
                    301:        if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
                    302:                return;
                    303:
                    304:        tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
1.90      nicm      305:        if (tty_use_acs(tty))
                    306:                tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
1.1       nicm      307:        tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
                    308:        tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
                    309:        tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
1.160     nicm      310:        if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) {
                    311:                if (tty_term_has(tty->term, TTYC_SE))
                    312:                        tty_raw(tty, tty_term_string(tty->term, TTYC_SE));
1.109     nicm      313:                else
1.160     nicm      314:                        tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0));
1.108     nicm      315:        }
1.173     nicm      316:        if (tty->mode & MODE_BRACKETPASTE)
                    317:                tty_raw(tty, "\033[?2004l");
1.107     nicm      318:        tty_raw(tty, tty_term_string(tty->term, TTYC_CR));
1.1       nicm      319:
                    320:        tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
                    321:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      322:                tty_raw(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.151     nicm      323:
1.189     nicm      324:        if (tty_term_flag(tty->term, TTYC_XT)) {
1.162     nicm      325:                if (tty->flags & TTY_FOCUS) {
                    326:                        tty->flags &= ~TTY_FOCUS;
1.172     nicm      327:                        tty_raw(tty, "\033[?1004l");
1.162     nicm      328:                }
                    329:        }
1.10      nicm      330:
1.212     nicm      331:        if (tty_use_margin(tty))
                    332:                tty_raw(tty, "\033[?69l"); /* DECLRMM */
1.10      nicm      333:        tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
1.150     nicm      334:
                    335:        setblocking(tty->fd, 1);
1.1       nicm      336: }
                    337:
                    338: void
1.20      nicm      339: tty_close(struct tty *tty)
1.1       nicm      340: {
1.123     nicm      341:        if (event_initialized(&tty->key_timer))
                    342:                evtimer_del(&tty->key_timer);
1.20      nicm      343:        tty_stop_tty(tty);
1.1       nicm      344:
1.21      nicm      345:        if (tty->flags & TTY_OPENED) {
1.66      nicm      346:                bufferevent_free(tty->event);
                    347:
1.21      nicm      348:                tty_term_free(tty->term);
                    349:                tty_keys_free(tty);
                    350:
                    351:                tty->flags &= ~TTY_OPENED;
                    352:        }
1.1       nicm      353:
1.21      nicm      354:        if (tty->fd != -1) {
                    355:                close(tty->fd);
                    356:                tty->fd = -1;
                    357:        }
1.1       nicm      358: }
                    359:
                    360: void
1.20      nicm      361: tty_free(struct tty *tty)
1.1       nicm      362: {
1.20      nicm      363:        tty_close(tty);
1.1       nicm      364:
1.138     nicm      365:        free(tty->ccolour);
1.190     nicm      366:        free(tty->path);
1.220     nicm      367:        free(tty->term_name);
1.1       nicm      368: }
                    369:
                    370: void
1.212     nicm      371: tty_set_type(struct tty *tty, int type)
                    372: {
                    373:        tty->term_type = type;
                    374:
                    375:        if (tty_use_margin(tty))
                    376:                tty_puts(tty, "\033[?69h"); /* DECLRMM */
                    377: }
                    378:
                    379: void
1.1       nicm      380: tty_raw(struct tty *tty, const char *s)
                    381: {
1.150     nicm      382:        ssize_t n, slen;
                    383:        u_int   i;
                    384:
                    385:        slen = strlen(s);
                    386:        for (i = 0; i < 5; i++) {
                    387:                n = write(tty->fd, s, slen);
                    388:                if (n >= 0) {
                    389:                        s += n;
                    390:                        slen -= n;
                    391:                        if (slen == 0)
                    392:                                break;
                    393:                } else if (n == -1 && errno != EAGAIN)
                    394:                        break;
                    395:                usleep(100);
                    396:        }
1.1       nicm      397: }
                    398:
                    399: void
                    400: tty_putcode(struct tty *tty, enum tty_code_code code)
                    401: {
                    402:        tty_puts(tty, tty_term_string(tty->term, code));
                    403: }
                    404:
                    405: void
                    406: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
                    407: {
                    408:        if (a < 0)
                    409:                return;
                    410:        tty_puts(tty, tty_term_string1(tty->term, code, a));
                    411: }
                    412:
                    413: void
                    414: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
                    415: {
                    416:        if (a < 0 || b < 0)
                    417:                return;
                    418:        tty_puts(tty, tty_term_string2(tty->term, code, a, b));
                    419: }
                    420:
                    421: void
1.107     nicm      422: tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a)
                    423: {
                    424:        if (a != NULL)
                    425:                tty_puts(tty, tty_term_ptr1(tty->term, code, a));
                    426: }
                    427:
                    428: void
1.167     nicm      429: tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a,
                    430:     const void *b)
1.106     nicm      431: {
                    432:        if (a != NULL && b != NULL)
                    433:                tty_puts(tty, tty_term_ptr2(tty->term, code, a, b));
                    434: }
                    435:
                    436: void
1.1       nicm      437: tty_puts(struct tty *tty, const char *s)
                    438: {
                    439:        if (*s == '\0')
                    440:                return;
1.66      nicm      441:        bufferevent_write(tty->event, s, strlen(s));
1.1       nicm      442:
1.192     nicm      443:        if (tty_log_fd != -1)
                    444:                write(tty_log_fd, s, strlen(s));
1.1       nicm      445: }
                    446:
                    447: void
                    448: tty_putc(struct tty *tty, u_char ch)
                    449: {
1.90      nicm      450:        const char      *acs;
1.1       nicm      451:
1.90      nicm      452:        if (tty->cell.attr & GRID_ATTR_CHARSET) {
                    453:                acs = tty_acs_get(tty, ch);
                    454:                if (acs != NULL)
                    455:                        bufferevent_write(tty->event, acs, strlen(acs));
                    456:                else
                    457:                        bufferevent_write(tty->event, &ch, 1);
                    458:        } else
                    459:                bufferevent_write(tty->event, &ch, 1);
1.1       nicm      460:
                    461:        if (ch >= 0x20 && ch != 0x7f) {
1.211     nicm      462:                if (tty->cx >= tty->sx) {
1.46      nicm      463:                        tty->cx = 1;
                    464:                        if (tty->cy != tty->rlower)
                    465:                                tty->cy++;
1.211     nicm      466:
                    467:                        /*
                    468:                         * On !xenl terminals, force the cursor position to
                    469:                         * where we think it should be after a line wrap - this
                    470:                         * means it works on sensible terminals as well.
                    471:                         */
                    472:                        if (tty->term->flags & TERM_EARLYWRAP)
                    473:                                tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx);
1.1       nicm      474:                } else
                    475:                        tty->cx++;
                    476:        }
                    477:
1.192     nicm      478:        if (tty_log_fd != -1)
                    479:                write(tty_log_fd, &ch, 1);
1.1       nicm      480: }
                    481:
                    482: void
1.147     nicm      483: tty_putn(struct tty *tty, const void *buf, size_t len, u_int width)
1.5       nicm      484: {
1.147     nicm      485:        bufferevent_write(tty->event, buf, len);
1.192     nicm      486:        if (tty_log_fd != -1)
                    487:                write(tty_log_fd, buf, len);
1.147     nicm      488:        tty->cx += width;
1.5       nicm      489: }
                    490:
1.207     nicm      491: static void
1.180     nicm      492: tty_set_italics(struct tty *tty)
                    493: {
                    494:        const char      *s;
                    495:
                    496:        if (tty_term_has(tty->term, TTYC_SITM)) {
1.191     nicm      497:                s = options_get_string(global_options, "default-terminal");
1.180     nicm      498:                if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) {
                    499:                        tty_putcode(tty, TTYC_SITM);
                    500:                        return;
                    501:                }
                    502:        }
                    503:        tty_putcode(tty, TTYC_SMSO);
                    504: }
                    505:
                    506: void
1.1       nicm      507: tty_set_title(struct tty *tty, const char *title)
                    508: {
1.105     nicm      509:        if (!tty_term_has(tty->term, TTYC_TSL) ||
                    510:            !tty_term_has(tty->term, TTYC_FSL))
1.1       nicm      511:                return;
                    512:
1.105     nicm      513:        tty_putcode(tty, TTYC_TSL);
1.1       nicm      514:        tty_puts(tty, title);
1.105     nicm      515:        tty_putcode(tty, TTYC_FSL);
1.1       nicm      516: }
                    517:
1.208     nicm      518: static void
1.107     nicm      519: tty_force_cursor_colour(struct tty *tty, const char *ccolour)
                    520: {
                    521:        if (*ccolour == '\0')
                    522:                tty_putcode(tty, TTYC_CR);
                    523:        else
1.160     nicm      524:                tty_putcode_ptr1(tty, TTYC_CS, ccolour);
1.138     nicm      525:        free(tty->ccolour);
1.107     nicm      526:        tty->ccolour = xstrdup(ccolour);
                    527: }
                    528:
                    529: void
                    530: tty_update_mode(struct tty *tty, int mode, struct screen *s)
1.1       nicm      531: {
                    532:        int     changed;
                    533:
1.197     nicm      534:        if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0)
1.107     nicm      535:                tty_force_cursor_colour(tty, s->ccolour);
                    536:
1.1       nicm      537:        if (tty->flags & TTY_NOCURSOR)
                    538:                mode &= ~MODE_CURSOR;
                    539:
                    540:        changed = mode ^ tty->mode;
1.183     nicm      541:        if (changed & MODE_BLINKING) {
                    542:                if (tty_term_has(tty->term, TTYC_CVVIS))
                    543:                        tty_putcode(tty, TTYC_CVVIS);
                    544:                else
                    545:                        tty_putcode(tty, TTYC_CNORM);
                    546:                changed |= MODE_CURSOR;
                    547:        }
                    548:        if (changed & MODE_CURSOR) {
                    549:                if (mode & MODE_CURSOR)
                    550:                        tty_putcode(tty, TTYC_CNORM);
                    551:                else
1.1       nicm      552:                        tty_putcode(tty, TTYC_CIVIS);
1.108     nicm      553:        }
1.181     nicm      554:        if (s != NULL && tty->cstyle != s->cstyle) {
1.160     nicm      555:                if (tty_term_has(tty->term, TTYC_SS)) {
1.108     nicm      556:                        if (s->cstyle == 0 &&
1.160     nicm      557:                            tty_term_has(tty->term, TTYC_SE))
                    558:                                tty_putcode(tty, TTYC_SE);
1.108     nicm      559:                        else
1.160     nicm      560:                                tty_putcode1(tty, TTYC_SS, s->cstyle);
1.108     nicm      561:                }
                    562:                tty->cstyle = s->cstyle;
1.1       nicm      563:        }
1.195     nicm      564:        if (changed & ALL_MOUSE_MODES) {
1.94      nicm      565:                if (mode & ALL_MOUSE_MODES) {
1.153     nicm      566:                        /*
                    567:                         * Enable the SGR (1006) extension unconditionally, as
1.221     nicm      568:                         * it is safe from misinterpretation.
1.153     nicm      569:                         */
                    570:                        tty_puts(tty, "\033[?1006h");
1.170     nicm      571:                        if (mode & MODE_MOUSE_BUTTON)
1.94      nicm      572:                                tty_puts(tty, "\033[?1002h");
1.98      nicm      573:                        else if (mode & MODE_MOUSE_STANDARD)
                    574:                                tty_puts(tty, "\033[?1000h");
1.86      nicm      575:                } else {
1.170     nicm      576:                        if (tty->mode & MODE_MOUSE_BUTTON)
1.94      nicm      577:                                tty_puts(tty, "\033[?1002l");
1.98      nicm      578:                        else if (tty->mode & MODE_MOUSE_STANDARD)
                    579:                                tty_puts(tty, "\033[?1000l");
1.153     nicm      580:                        tty_puts(tty, "\033[?1006l");
1.86      nicm      581:                }
1.76      nicm      582:        }
                    583:        if (changed & MODE_KKEYPAD) {
                    584:                if (mode & MODE_KKEYPAD)
                    585:                        tty_putcode(tty, TTYC_SMKX);
                    586:                else
                    587:                        tty_putcode(tty, TTYC_RMKX);
1.115     nicm      588:        }
                    589:        if (changed & MODE_BRACKETPASTE) {
                    590:                if (mode & MODE_BRACKETPASTE)
                    591:                        tty_puts(tty, "\033[?2004h");
                    592:                else
                    593:                        tty_puts(tty, "\033[?2004l");
1.1       nicm      594:        }
                    595:        tty->mode = mode;
                    596: }
                    597:
1.207     nicm      598: static void
1.168     nicm      599: tty_emulate_repeat(struct tty *tty, enum tty_code_code code,
                    600:     enum tty_code_code code1, u_int n)
1.1       nicm      601: {
                    602:        if (tty_term_has(tty->term, code))
                    603:                tty_putcode1(tty, code, n);
                    604:        else {
                    605:                while (n-- > 0)
                    606:                        tty_putcode(tty, code1);
                    607:        }
                    608: }
                    609:
1.207     nicm      610: static void
1.133     nicm      611: tty_repeat_space(struct tty *tty, u_int n)
                    612: {
                    613:        while (n-- > 0)
                    614:                tty_putc(tty, ' ');
                    615: }
                    616:
1.1       nicm      617: /*
1.119     nicm      618:  * Is the region large enough to be worth redrawing once later rather than
                    619:  * probably several times now? Currently yes if it is more than 50% of the
                    620:  * pane.
                    621:  */
1.207     nicm      622: static int
1.194     nicm      623: tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx)
1.119     nicm      624: {
                    625:        struct window_pane      *wp = ctx->wp;
                    626:
                    627:        return (ctx->orlower - ctx->orupper >= screen_size_y(wp->screen) / 2);
                    628: }
                    629:
                    630: /*
1.176     nicm      631:  * Return if BCE is needed but the terminal doesn't have it - it'll need to be
                    632:  * emulated.
                    633:  */
1.207     nicm      634: static int
1.210     nicm      635: tty_fake_bce(const struct tty *tty, const struct window_pane *wp, u_int bg)
1.176     nicm      636: {
                    637:        struct grid_cell        gc;
                    638:
1.210     nicm      639:        if (tty_term_flag(tty->term, TTYC_BCE))
                    640:                return (0);
                    641:
1.176     nicm      642:        memcpy(&gc, &grid_default_cell, sizeof gc);
1.203     nicm      643:        if (wp != NULL)
                    644:                tty_default_colours(&gc, wp);
1.176     nicm      645:
1.210     nicm      646:        if (bg != 8 || gc.bg != 8)
                    647:                return (1);
                    648:        return (0);
1.176     nicm      649: }
                    650:
                    651: /*
1.1       nicm      652:  * Redraw scroll region using data from screen (already updated). Used when
                    653:  * CSR not supported, or window is a pane that doesn't take up the full
                    654:  * width of the terminal.
                    655:  */
1.207     nicm      656: static void
1.24      nicm      657: tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      658: {
1.14      nicm      659:        struct window_pane      *wp = ctx->wp;
                    660:        struct screen           *s = wp->screen;
1.204     nicm      661:        u_int                    i;
1.1       nicm      662:
                    663:        /*
1.119     nicm      664:         * If region is large, schedule a window redraw. In most cases this is
                    665:         * likely to be followed by some more scrolling.
1.1       nicm      666:         */
1.119     nicm      667:        if (tty_large_region(tty, ctx)) {
1.1       nicm      668:                wp->flags |= PANE_REDRAW;
                    669:                return;
                    670:        }
                    671:
1.14      nicm      672:        if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
                    673:                for (i = ctx->ocy; i < screen_size_y(s); i++)
1.176     nicm      674:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      675:        } else {
1.14      nicm      676:                for (i = ctx->orupper; i <= ctx->orlower; i++)
1.176     nicm      677:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      678:        }
                    679: }
                    680:
                    681: void
1.176     nicm      682: tty_draw_pane(struct tty *tty, const struct window_pane *wp, u_int py, u_int ox,
                    683:     u_int oy)
                    684: {
                    685:        tty_draw_line(tty, wp, wp->screen, py, ox, oy);
                    686: }
                    687:
                    688: void
                    689: tty_draw_line(struct tty *tty, const struct window_pane *wp,
                    690:     struct screen *s, u_int py, u_int ox, u_int oy)
1.1       nicm      691: {
1.209     nicm      692:        struct grid_cell         gc, tmp_gc;
1.46      nicm      693:        struct grid_line        *gl;
1.1       nicm      694:        u_int                    i, sx;
1.181     nicm      695:        int                      flags;
1.1       nicm      696:
1.181     nicm      697:        flags = tty->flags & TTY_NOCURSOR;
                    698:        tty->flags |= TTY_NOCURSOR;
                    699:        tty_update_mode(tty, tty->mode, s);
1.35      nicm      700:
1.214     nicm      701:        tty_region_off(tty);
                    702:        tty_margin_off(tty);
                    703:
1.1       nicm      704:        sx = screen_size_x(s);
1.19      nicm      705:        if (sx > s->grid->linedata[s->grid->hsize + py].cellsize)
                    706:                sx = s->grid->linedata[s->grid->hsize + py].cellsize;
1.1       nicm      707:        if (sx > tty->sx)
                    708:                sx = tty->sx;
                    709:
1.46      nicm      710:        /*
1.174     nicm      711:         * Don't move the cursor to the start position if it will wrap there
1.50      nicm      712:         * itself.
1.46      nicm      713:         */
                    714:        gl = NULL;
                    715:        if (py != 0)
                    716:                gl = &s->grid->linedata[s->grid->hsize + py - 1];
1.83      nicm      717:        if (oy + py == 0 || gl == NULL || !(gl->flags & GRID_LINE_WRAPPED) ||
1.47      nicm      718:            tty->cx < tty->sx || ox != 0 ||
                    719:            (oy + py != tty->cy + 1 && tty->cy != s->rlower + oy))
1.46      nicm      720:                tty_cursor(tty, ox, oy + py);
                    721:
1.1       nicm      722:        for (i = 0; i < sx; i++) {
1.193     nicm      723:                grid_view_get_cell(s->grid, i, py, &gc);
1.209     nicm      724:                if (gc.flags & GRID_FLAG_SELECTED) {
                    725:                        screen_select_cell(s, &tmp_gc, &gc);
                    726:                        tty_cell(tty, &tmp_gc, wp);
                    727:                } else
                    728:                        tty_cell(tty, &gc, wp);
1.1       nicm      729:        }
                    730:
1.181     nicm      731:        if (sx < tty->sx) {
1.210     nicm      732:                tty_default_attributes(tty, wp, 8);
1.181     nicm      733:
                    734:                tty_cursor(tty, ox + sx, oy + py);
                    735:                if (sx != screen_size_x(s) &&
                    736:                    ox + screen_size_x(s) >= tty->sx &&
                    737:                    tty_term_has(tty->term, TTYC_EL) &&
1.210     nicm      738:                    !tty_fake_bce(tty, wp, 8))
1.181     nicm      739:                        tty_putcode(tty, TTYC_EL);
                    740:                else
                    741:                        tty_repeat_space(tty, screen_size_x(s) - sx);
1.35      nicm      742:        }
1.1       nicm      743:
1.181     nicm      744:        tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags;
1.107     nicm      745:        tty_update_mode(tty, tty->mode, s);
1.15      nicm      746: }
                    747:
1.201     nicm      748: static int
1.182     nicm      749: tty_client_ready(struct client *c, struct window_pane *wp)
                    750: {
                    751:        if (c->session == NULL || c->tty.term == NULL)
                    752:                return (0);
                    753:        if (c->flags & CLIENT_SUSPENDED)
                    754:                return (0);
                    755:        if (c->tty.flags & TTY_FREEZE)
                    756:                return (0);
                    757:        if (c->session->curw->window != wp->window)
                    758:                return (0);
                    759:        return (1);
                    760: }
                    761:
1.15      nicm      762: void
1.182     nicm      763: tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *),
                    764:     struct tty_ctx *ctx)
1.15      nicm      765: {
                    766:        struct window_pane      *wp = ctx->wp;
                    767:        struct client           *c;
                    768:
1.75      nicm      769:        /* wp can be NULL if updating the screen but not the terminal. */
1.15      nicm      770:        if (wp == NULL)
                    771:                return;
                    772:
                    773:        if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
                    774:                return;
1.129     nicm      775:        if (!window_pane_visible(wp) || wp->flags & PANE_DROP)
1.15      nicm      776:                return;
                    777:
1.178     nicm      778:        TAILQ_FOREACH(c, &clients, entry) {
1.182     nicm      779:                if (!tty_client_ready(c, wp))
1.15      nicm      780:                        continue;
                    781:
1.139     nicm      782:                ctx->xoff = wp->xoff;
                    783:                ctx->yoff = wp->yoff;
                    784:                if (status_at_line(c) == 0)
                    785:                        ctx->yoff++;
1.113     nicm      786:
1.139     nicm      787:                cmdfn(&c->tty, ctx);
1.1       nicm      788:        }
                    789: }
                    790:
                    791: void
1.24      nicm      792: tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      793: {
1.77      nicm      794:        struct window_pane      *wp = ctx->wp;
1.1       nicm      795:
1.210     nicm      796:        if (!tty_pane_full_width(tty, ctx) ||
                    797:            tty_fake_bce(tty, wp, ctx->bg) ||
                    798:            (!tty_term_has(tty->term, TTYC_ICH) &&
                    799:            !tty_term_has(tty->term, TTYC_ICH1))) {
1.176     nicm      800:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      801:                return;
                    802:        }
                    803:
1.210     nicm      804:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      805:
1.77      nicm      806:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      807:
1.206     nicm      808:        tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
1.1       nicm      809: }
                    810:
                    811: void
1.24      nicm      812: tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      813: {
1.77      nicm      814:        struct window_pane      *wp = ctx->wp;
1.1       nicm      815:
1.210     nicm      816:        if (!tty_pane_full_width(tty, ctx) ||
                    817:            tty_fake_bce(tty, wp, ctx->bg) ||
1.26      nicm      818:            (!tty_term_has(tty->term, TTYC_DCH) &&
                    819:            !tty_term_has(tty->term, TTYC_DCH1))) {
1.176     nicm      820:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      821:                return;
                    822:        }
                    823:
1.210     nicm      824:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      825:
1.77      nicm      826:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      827:
1.206     nicm      828:        tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
1.146     nicm      829: }
                    830:
                    831: void
                    832: tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx)
                    833: {
                    834:        u_int   i;
                    835:
1.176     nicm      836:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.146     nicm      837:
                    838:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    839:
1.210     nicm      840:        if (tty_term_has(tty->term, TTYC_ECH) &&
                    841:            !tty_fake_bce(tty, ctx->wp, ctx->bg))
1.146     nicm      842:                tty_putcode1(tty, TTYC_ECH, ctx->num);
                    843:        else {
                    844:                for (i = 0; i < ctx->num; i++)
                    845:                        tty_putc(tty, ' ');
                    846:        }
1.1       nicm      847: }
                    848:
                    849: void
1.24      nicm      850: tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      851: {
1.210     nicm      852:        if (!tty_pane_full_width(tty, ctx) ||
                    853:            tty_fake_bce(tty, ctx->wp, ctx->bg) ||
1.77      nicm      854:            !tty_term_has(tty->term, TTYC_CSR) ||
1.72      nicm      855:            !tty_term_has(tty->term, TTYC_IL1)) {
1.14      nicm      856:                tty_redraw_region(tty, ctx);
1.1       nicm      857:                return;
                    858:        }
                    859:
1.210     nicm      860:        tty_default_attributes(tty, ctx->wp, ctx->bg);
1.1       nicm      861:
1.77      nicm      862:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.214     nicm      863:        tty_margin_off(tty);
1.77      nicm      864:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      865:
1.12      nicm      866:        tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
1.1       nicm      867: }
                    868:
                    869: void
1.24      nicm      870: tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      871: {
1.210     nicm      872:        if (!tty_pane_full_width(tty, ctx) ||
                    873:            tty_fake_bce(tty, ctx->wp, ctx->bg) ||
1.72      nicm      874:            !tty_term_has(tty->term, TTYC_CSR) ||
                    875:            !tty_term_has(tty->term, TTYC_DL1)) {
1.14      nicm      876:                tty_redraw_region(tty, ctx);
1.1       nicm      877:                return;
                    878:        }
                    879:
1.210     nicm      880:        tty_default_attributes(tty, ctx->wp, ctx->bg);
1.1       nicm      881:
1.77      nicm      882:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.214     nicm      883:        tty_margin_off(tty);
1.77      nicm      884:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      885:
1.12      nicm      886:        tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
1.1       nicm      887: }
                    888:
                    889: void
1.24      nicm      890: tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      891: {
1.77      nicm      892:        struct window_pane      *wp = ctx->wp;
1.12      nicm      893:        struct screen           *s = wp->screen;
1.1       nicm      894:
1.210     nicm      895:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      896:
1.77      nicm      897:        tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.41      nicm      898:
1.210     nicm      899:        if (tty_pane_full_width(tty, ctx) &&
                    900:            !tty_fake_bce(tty, wp, ctx->bg) &&
1.176     nicm      901:            tty_term_has(tty->term, TTYC_EL))
1.1       nicm      902:                tty_putcode(tty, TTYC_EL);
1.133     nicm      903:        else
                    904:                tty_repeat_space(tty, screen_size_x(s));
1.1       nicm      905: }
                    906:
                    907: void
1.24      nicm      908: tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      909: {
1.77      nicm      910:        struct window_pane      *wp = ctx->wp;
1.12      nicm      911:        struct screen           *s = wp->screen;
1.1       nicm      912:
1.210     nicm      913:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      914:
1.41      nicm      915:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    916:
1.176     nicm      917:        if (tty_pane_full_width(tty, ctx) &&
1.210     nicm      918:            tty_term_has(tty->term, TTYC_EL) &&
                    919:            !tty_fake_bce(tty, wp, ctx->bg))
1.1       nicm      920:                tty_putcode(tty, TTYC_EL);
1.133     nicm      921:        else
                    922:                tty_repeat_space(tty, screen_size_x(s) - ctx->ocx);
1.1       nicm      923: }
                    924:
                    925: void
1.24      nicm      926: tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      927: {
1.210     nicm      928:        struct window_pane      *wp = ctx->wp;
                    929:
                    930:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      931:
1.210     nicm      932:        if (ctx->xoff == 0 &&
                    933:            tty_term_has(tty->term, TTYC_EL1) &&
                    934:            !tty_fake_bce(tty, ctx->wp, ctx->bg)) {
1.41      nicm      935:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      936:                tty_putcode(tty, TTYC_EL1);
                    937:        } else {
1.41      nicm      938:                tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.133     nicm      939:                tty_repeat_space(tty, ctx->ocx + 1);
1.1       nicm      940:        }
                    941: }
                    942:
                    943: void
1.24      nicm      944: tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      945: {
1.56      nicm      946:        if (ctx->ocy != ctx->orupper)
                    947:                return;
                    948:
1.210     nicm      949:        if (!tty_pane_full_width(tty, ctx) ||
                    950:            tty_fake_bce(tty, ctx->wp, ctx->bg) ||
1.70      nicm      951:            !tty_term_has(tty->term, TTYC_CSR) ||
                    952:            !tty_term_has(tty->term, TTYC_RI)) {
1.14      nicm      953:                tty_redraw_region(tty, ctx);
1.1       nicm      954:                return;
                    955:        }
                    956:
1.176     nicm      957:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.77      nicm      958:
1.56      nicm      959:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.214     nicm      960:        tty_margin_off(tty);
1.56      nicm      961:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
1.77      nicm      962:
1.56      nicm      963:        tty_putcode(tty, TTYC_RI);
1.1       nicm      964: }
                    965:
                    966: void
1.24      nicm      967: tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      968: {
1.77      nicm      969:        struct window_pane      *wp = ctx->wp;
1.1       nicm      970:
1.56      nicm      971:        if (ctx->ocy != ctx->orlower)
                    972:                return;
                    973:
1.212     nicm      974:        if ((!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) ||
1.210     nicm      975:            tty_fake_bce(tty, wp, ctx->bg) ||
1.1       nicm      976:            !tty_term_has(tty->term, TTYC_CSR)) {
1.128     nicm      977:                if (tty_large_region(tty, ctx))
                    978:                        wp->flags |= PANE_REDRAW;
1.140     nicm      979:                else
1.128     nicm      980:                        tty_redraw_region(tty, ctx);
1.1       nicm      981:                return;
                    982:        }
1.52      nicm      983:
                    984:        /*
1.212     nicm      985:         * If this line wrapped naturally (ctx->num is nonzero) and we are not
                    986:         * using margins, don't do anything - the cursor can just be moved
                    987:         * to the last cell and wrap naturally.
1.52      nicm      988:         */
1.214     nicm      989:        if ((!tty_use_margin(tty) ||
                    990:            tty_pane_full_width(tty, ctx)) &&
1.212     nicm      991:            ctx->num != 0 &&
1.216     nicm      992:            !(tty->term->flags & TERM_EARLYWRAP))
1.52      nicm      993:                return;
1.1       nicm      994:
1.176     nicm      995:        tty_attributes(tty, &grid_default_cell, wp);
1.77      nicm      996:
1.56      nicm      997:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.212     nicm      998:        tty_margin_pane(tty, ctx);
                    999:
                   1000:        /*
                   1001:         * If we want to wrap a pane, the cursor needs to be exactly on the
                   1002:         * right of the region. But if the pane isn't on the right, it may be
                   1003:         * off the edge - if so, move the cursor back to the right.
                   1004:         */
                   1005:        if (ctx->xoff + ctx->ocx > tty->rright)
1.216     nicm     1006:                tty_cursor(tty, tty->rright, ctx->yoff + ctx->ocy);
1.212     nicm     1007:        else
                   1008:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.77      nicm     1009:
1.56      nicm     1010:        tty_putc(tty, '\n');
1.1       nicm     1011: }
                   1012:
                   1013: void
1.24      nicm     1014: tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1015: {
1.77      nicm     1016:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1017:        struct screen           *s = wp->screen;
1.204     nicm     1018:        u_int                    i, j;
1.1       nicm     1019:
1.210     nicm     1020:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm     1021:
1.39      nicm     1022:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.214     nicm     1023:        tty_margin_off(tty);
1.41      nicm     1024:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.39      nicm     1025:
1.176     nicm     1026:        if (tty_pane_full_width(tty, ctx) &&
1.210     nicm     1027:            tty_term_has(tty->term, TTYC_EL) &&
                   1028:            !tty_fake_bce(tty, wp, ctx->bg)) {
1.1       nicm     1029:                tty_putcode(tty, TTYC_EL);
1.14      nicm     1030:                if (ctx->ocy != screen_size_y(s) - 1) {
1.41      nicm     1031:                        tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
1.14      nicm     1032:                        for (i = ctx->ocy + 1; i < screen_size_y(s); i++) {
1.1       nicm     1033:                                tty_putcode(tty, TTYC_EL);
                   1034:                                if (i == screen_size_y(s) - 1)
                   1035:                                        continue;
                   1036:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1037:                                tty->cy++;
                   1038:                        }
                   1039:                }
                   1040:        } else {
1.133     nicm     1041:                tty_repeat_space(tty, screen_size_x(s) - ctx->ocx);
1.68      nicm     1042:                for (j = ctx->ocy + 1; j < screen_size_y(s); j++) {
1.41      nicm     1043:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm     1044:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1045:                }
                   1046:        }
                   1047: }
                   1048:
                   1049: void
1.24      nicm     1050: tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1051: {
1.77      nicm     1052:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1053:        struct screen           *s = wp->screen;
1.204     nicm     1054:        u_int                    i, j;
1.1       nicm     1055:
1.176     nicm     1056:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm     1057:
1.39      nicm     1058:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.214     nicm     1059:        tty_margin_off(tty);
1.41      nicm     1060:        tty_cursor_pane(tty, ctx, 0, 0);
1.39      nicm     1061:
1.176     nicm     1062:        if (tty_pane_full_width(tty, ctx) &&
1.210     nicm     1063:            tty_term_has(tty->term, TTYC_EL) &&
                   1064:            !tty_fake_bce(tty, wp, ctx->bg)) {
1.14      nicm     1065:                for (i = 0; i < ctx->ocy; i++) {
1.1       nicm     1066:                        tty_putcode(tty, TTYC_EL);
                   1067:                        tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1068:                        tty->cy++;
                   1069:                }
                   1070:        } else {
1.14      nicm     1071:                for (j = 0; j < ctx->ocy; j++) {
1.41      nicm     1072:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm     1073:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1074:                }
                   1075:        }
1.133     nicm     1076:        tty_repeat_space(tty, ctx->ocx + 1);
1.1       nicm     1077: }
                   1078:
                   1079: void
1.24      nicm     1080: tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1081: {
1.77      nicm     1082:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1083:        struct screen           *s = wp->screen;
1.204     nicm     1084:        u_int                    i, j;
1.1       nicm     1085:
1.210     nicm     1086:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm     1087:
1.39      nicm     1088:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.214     nicm     1089:        tty_margin_off(tty);
1.41      nicm     1090:        tty_cursor_pane(tty, ctx, 0, 0);
1.39      nicm     1091:
1.176     nicm     1092:        if (tty_pane_full_width(tty, ctx) &&
1.210     nicm     1093:            tty_term_has(tty->term, TTYC_EL) &&
                   1094:            !tty_fake_bce(tty, wp, ctx->bg)) {
1.1       nicm     1095:                for (i = 0; i < screen_size_y(s); i++) {
                   1096:                        tty_putcode(tty, TTYC_EL);
                   1097:                        if (i != screen_size_y(s) - 1) {
                   1098:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1099:                                tty->cy++;
                   1100:                        }
                   1101:                }
                   1102:        } else {
                   1103:                for (j = 0; j < screen_size_y(s); j++) {
1.41      nicm     1104:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm     1105:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1106:                }
1.4       nicm     1107:        }
                   1108: }
                   1109:
                   1110: void
1.24      nicm     1111: tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
1.4       nicm     1112: {
1.12      nicm     1113:        struct window_pane      *wp = ctx->wp;
                   1114:        struct screen           *s = wp->screen;
                   1115:        u_int                    i, j;
1.4       nicm     1116:
1.176     nicm     1117:        tty_attributes(tty, &grid_default_cell, wp);
1.4       nicm     1118:
1.39      nicm     1119:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.214     nicm     1120:        tty_margin_off(tty);
1.4       nicm     1121:
                   1122:        for (j = 0; j < screen_size_y(s); j++) {
1.41      nicm     1123:                tty_cursor_pane(tty, ctx, 0, j);
1.4       nicm     1124:                for (i = 0; i < screen_size_x(s); i++)
                   1125:                        tty_putc(tty, 'E');
1.1       nicm     1126:        }
                   1127: }
                   1128:
                   1129: void
1.24      nicm     1130: tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1131: {
1.46      nicm     1132:        struct window_pane      *wp = ctx->wp;
                   1133:        struct screen           *s = wp->screen;
1.203     nicm     1134:        u_int                    cx, width;
1.46      nicm     1135:
1.222     nicm     1136:        if (ctx->xoff + ctx->ocx > tty->sx - 1 && ctx->ocy == ctx->orlower) {
                   1137:                if (tty_pane_full_width(tty, ctx))
                   1138:                        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                   1139:                else
                   1140:                        tty_margin_off(tty);
                   1141:        }
1.46      nicm     1142:
1.57      nicm     1143:        /* Is the cursor in the very last position? */
1.193     nicm     1144:        width = ctx->cell->data.width;
1.102     nicm     1145:        if (ctx->ocx > wp->sx - width) {
1.216     nicm     1146:                if (!tty_pane_full_width(tty, ctx)) {
1.57      nicm     1147:                        /*
                   1148:                         * The pane doesn't fill the entire line, the linefeed
                   1149:                         * will already have happened, so just move the cursor.
                   1150:                         */
1.125     nicm     1151:                        if (ctx->ocy != wp->yoff + wp->screen->rlower)
1.122     nicm     1152:                                tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
                   1153:                        else
                   1154:                                tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.218     nicm     1155:                } else if (tty->cy != ctx->yoff + ctx->ocy ||
                   1156:                    tty->cx < tty->sx) {
1.57      nicm     1157:                        /*
                   1158:                         * The cursor isn't in the last position already, so
1.216     nicm     1159:                         * move as far right as possible and redraw the last
1.57      nicm     1160:                         * cell to move into the last position.
                   1161:                         */
1.193     nicm     1162:                        cx = screen_size_x(s) - ctx->last_cell.data.width;
1.50      nicm     1163:                        tty_cursor_pane(tty, ctx, cx, ctx->ocy);
1.176     nicm     1164:                        tty_cell(tty, &ctx->last_cell, wp);
1.50      nicm     1165:                }
                   1166:        } else
1.46      nicm     1167:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm     1168:
1.176     nicm     1169:        tty_cell(tty, ctx->cell, wp);
1.1       nicm     1170: }
                   1171:
                   1172: void
1.24      nicm     1173: tty_cmd_utf8character(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1174: {
1.53      nicm     1175:        struct window_pane      *wp = ctx->wp;
1.1       nicm     1176:
1.53      nicm     1177:        /*
                   1178:         * Cannot rely on not being a partial character, so just redraw the
                   1179:         * whole line.
                   1180:         */
1.176     nicm     1181:        tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.106     nicm     1182: }
                   1183:
                   1184: void
                   1185: tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx)
                   1186: {
                   1187:        char    *buf;
                   1188:        size_t   off;
                   1189:
                   1190:        if (!tty_term_has(tty->term, TTYC_MS))
                   1191:                return;
                   1192:
                   1193:        off = 4 * ((ctx->num + 2) / 3) + 1; /* storage for base64 */
                   1194:        buf = xmalloc(off);
                   1195:
                   1196:        b64_ntop(ctx->ptr, ctx->num, buf, off);
                   1197:        tty_putcode_ptr2(tty, TTYC_MS, "", buf);
                   1198:
1.138     nicm     1199:        free(buf);
1.100     nicm     1200: }
                   1201:
                   1202: void
                   1203: tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
                   1204: {
                   1205:        u_int    i;
                   1206:        u_char  *str = ctx->ptr;
                   1207:
                   1208:        for (i = 0; i < ctx->num; i++)
                   1209:                tty_putc(tty, str[i]);
1.141     nicm     1210:
                   1211:        tty->cx = tty->cy = UINT_MAX;
                   1212:        tty->rupper = tty->rlower = UINT_MAX;
                   1213:
1.176     nicm     1214:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.141     nicm     1215:        tty_cursor(tty, 0, 0);
1.1       nicm     1216: }
                   1217:
1.207     nicm     1218: static void
1.176     nicm     1219: tty_cell(struct tty *tty, const struct grid_cell *gc,
                   1220:     const struct window_pane *wp)
1.1       nicm     1221: {
1.193     nicm     1222:        u_int   i;
1.1       nicm     1223:
                   1224:        /* Skip last character if terminal is stupid. */
1.211     nicm     1225:        if ((tty->term->flags & TERM_EARLYWRAP) &&
                   1226:            tty->cy == tty->sy - 1 &&
                   1227:            tty->cx == tty->sx - 1)
1.1       nicm     1228:                return;
                   1229:
                   1230:        /* If this is a padding character, do nothing. */
                   1231:        if (gc->flags & GRID_FLAG_PADDING)
                   1232:                return;
                   1233:
                   1234:        /* Set the attributes. */
1.176     nicm     1235:        tty_attributes(tty, gc, wp);
1.1       nicm     1236:
1.147     nicm     1237:        /* Get the cell and if ASCII write with putc to do ACS translation. */
1.193     nicm     1238:        if (gc->data.size == 1) {
                   1239:                if (*gc->data.data < 0x20 || *gc->data.data == 0x7f)
1.1       nicm     1240:                        return;
1.193     nicm     1241:                tty_putc(tty, *gc->data.data);
1.1       nicm     1242:                return;
                   1243:        }
                   1244:
1.147     nicm     1245:        /* If not UTF-8, write _. */
1.1       nicm     1246:        if (!(tty->flags & TTY_UTF8)) {
1.193     nicm     1247:                for (i = 0; i < gc->data.width; i++)
1.1       nicm     1248:                        tty_putc(tty, '_');
                   1249:                return;
                   1250:        }
                   1251:
1.147     nicm     1252:        /* Write the data. */
1.193     nicm     1253:        tty_putn(tty, gc->data.data, gc->data.size, gc->data.width);
1.1       nicm     1254: }
                   1255:
                   1256: void
                   1257: tty_reset(struct tty *tty)
                   1258: {
                   1259:        struct grid_cell        *gc = &tty->cell;
                   1260:
1.205     nicm     1261:        if (grid_cells_equal(gc, &grid_default_cell))
1.1       nicm     1262:                return;
                   1263:
1.90      nicm     1264:        if ((gc->attr & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1.1       nicm     1265:                tty_putcode(tty, TTYC_RMACS);
                   1266:        tty_putcode(tty, TTYC_SGR0);
                   1267:        memcpy(gc, &grid_default_cell, sizeof *gc);
                   1268: }
                   1269:
1.214     nicm     1270: /* Turn off margin. */
                   1271: void
                   1272: tty_region_off(struct tty *tty)
                   1273: {
                   1274:        tty_region(tty, 0, tty->sy - 1);
                   1275: }
                   1276:
1.40      nicm     1277: /* Set region inside pane. */
1.208     nicm     1278: static void
1.196     nicm     1279: tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper,
                   1280:     u_int rlower)
1.1       nicm     1281: {
1.113     nicm     1282:        tty_region(tty, ctx->yoff + rupper, ctx->yoff + rlower);
1.39      nicm     1283: }
                   1284:
1.40      nicm     1285: /* Set region at absolute position. */
1.214     nicm     1286: static void
1.40      nicm     1287: tty_region(struct tty *tty, u_int rupper, u_int rlower)
1.39      nicm     1288: {
                   1289:        if (tty->rlower == rlower && tty->rupper == rupper)
                   1290:                return;
1.1       nicm     1291:        if (!tty_term_has(tty->term, TTYC_CSR))
                   1292:                return;
1.39      nicm     1293:
                   1294:        tty->rupper = rupper;
                   1295:        tty->rlower = rlower;
1.55      nicm     1296:
                   1297:        /*
                   1298:         * Some terminals (such as PuTTY) do not correctly reset the cursor to
                   1299:         * 0,0 if it is beyond the last column (they do not reset their wrap
                   1300:         * flag so further output causes a line feed). As a workaround, do an
                   1301:         * explicit move to 0 first.
                   1302:         */
                   1303:        if (tty->cx >= tty->sx)
                   1304:                tty_cursor(tty, 0, tty->cy);
1.42      nicm     1305:
1.39      nicm     1306:        tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1.212     nicm     1307:        tty_cursor(tty, 0, 0);
                   1308: }
                   1309:
1.214     nicm     1310: /* Turn off margin. */
                   1311: void
                   1312: tty_margin_off(struct tty *tty)
                   1313: {
                   1314:        tty_margin(tty, 0, tty->sx - 1);
                   1315: }
                   1316:
1.212     nicm     1317: /* Set margin inside pane. */
                   1318: static void
                   1319: tty_margin_pane(struct tty *tty, const struct tty_ctx *ctx)
                   1320: {
                   1321:        tty_margin(tty, ctx->xoff, ctx->xoff + ctx->wp->sx - 1);
                   1322: }
                   1323:
                   1324: /* Set margin at absolute position. */
1.214     nicm     1325: static void
1.212     nicm     1326: tty_margin(struct tty *tty, u_int rleft, u_int rright)
                   1327: {
                   1328:        char s[64];
                   1329:
                   1330:        if (!tty_use_margin(tty))
                   1331:                return;
                   1332:        if (tty->rleft == rleft && tty->rright == rright)
                   1333:                return;
                   1334:
                   1335:        tty->rleft = rleft;
                   1336:        tty->rright = rright;
                   1337:
                   1338:        snprintf(s, sizeof s, "\033[%u;%us", rleft + 1, rright + 1);
                   1339:        tty_puts(tty, s);
1.78      nicm     1340:        tty_cursor(tty, 0, 0);
1.1       nicm     1341: }
                   1342:
1.42      nicm     1343: /* Move cursor inside pane. */
1.208     nicm     1344: static void
1.41      nicm     1345: tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
                   1346: {
1.113     nicm     1347:        tty_cursor(tty, ctx->xoff + cx, ctx->yoff + cy);
1.41      nicm     1348: }
                   1349:
1.42      nicm     1350: /* Move cursor to absolute position. */
1.41      nicm     1351: void
                   1352: tty_cursor(struct tty *tty, u_int cx, u_int cy)
1.1       nicm     1353: {
1.42      nicm     1354:        struct tty_term *term = tty->term;
                   1355:        u_int            thisx, thisy;
                   1356:        int              change;
1.77      nicm     1357:
1.42      nicm     1358:        if (cx > tty->sx - 1)
                   1359:                cx = tty->sx - 1;
                   1360:
                   1361:        thisx = tty->cx;
                   1362:        thisy = tty->cy;
                   1363:
                   1364:        /* No change. */
                   1365:        if (cx == thisx && cy == thisy)
                   1366:                return;
                   1367:
1.43      nicm     1368:        /* Very end of the line, just use absolute movement. */
                   1369:        if (thisx > tty->sx - 1)
                   1370:                goto absolute;
                   1371:
1.42      nicm     1372:        /* Move to home position (0, 0). */
                   1373:        if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
                   1374:                tty_putcode(tty, TTYC_HOME);
                   1375:                goto out;
                   1376:        }
                   1377:
                   1378:        /* Zero on the next line. */
1.48      nicm     1379:        if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower) {
1.1       nicm     1380:                tty_putc(tty, '\r');
1.42      nicm     1381:                tty_putc(tty, '\n');
                   1382:                goto out;
                   1383:        }
                   1384:
1.45      nicm     1385:        /* Moving column or row. */
1.42      nicm     1386:        if (cy == thisy) {
1.45      nicm     1387:                /*
                   1388:                 * Moving column only, row staying the same.
                   1389:                 */
                   1390:
1.42      nicm     1391:                /* To left edge. */
1.202     nicm     1392:                if (cx == 0) {
1.42      nicm     1393:                        tty_putc(tty, '\r');
                   1394:                        goto out;
                   1395:                }
                   1396:
                   1397:                /* One to the left. */
                   1398:                if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
                   1399:                        tty_putcode(tty, TTYC_CUB1);
                   1400:                        goto out;
                   1401:                }
                   1402:
                   1403:                /* One to the right. */
                   1404:                if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
                   1405:                        tty_putcode(tty, TTYC_CUF1);
                   1406:                        goto out;
                   1407:                }
                   1408:
                   1409:                /* Calculate difference. */
                   1410:                change = thisx - cx;    /* +ve left, -ve right */
                   1411:
                   1412:                /*
                   1413:                 * Use HPA if change is larger than absolute, otherwise move
                   1414:                 * the cursor with CUB/CUF.
                   1415:                 */
1.87      nicm     1416:                if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
1.42      nicm     1417:                        tty_putcode1(tty, TTYC_HPA, cx);
                   1418:                        goto out;
                   1419:                } else if (change > 0 && tty_term_has(term, TTYC_CUB)) {
1.202     nicm     1420:                        if (change == 2 && tty_term_has(term, TTYC_CUB1)) {
                   1421:                                tty_putcode(tty, TTYC_CUB1);
                   1422:                                tty_putcode(tty, TTYC_CUB1);
                   1423:                                goto out;
                   1424:                        }
1.42      nicm     1425:                        tty_putcode1(tty, TTYC_CUB, change);
                   1426:                        goto out;
                   1427:                } else if (change < 0 && tty_term_has(term, TTYC_CUF)) {
                   1428:                        tty_putcode1(tty, TTYC_CUF, -change);
                   1429:                        goto out;
                   1430:                }
1.45      nicm     1431:        } else if (cx == thisx) {
                   1432:                /*
                   1433:                 * Moving row only, column staying the same.
                   1434:                 */
1.42      nicm     1435:
                   1436:                /* One above. */
1.77      nicm     1437:                if (thisy != tty->rupper &&
1.42      nicm     1438:                    cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
                   1439:                        tty_putcode(tty, TTYC_CUU1);
                   1440:                        goto out;
                   1441:                }
                   1442:
                   1443:                /* One below. */
1.49      nicm     1444:                if (thisy != tty->rlower &&
1.42      nicm     1445:                    cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
                   1446:                        tty_putcode(tty, TTYC_CUD1);
                   1447:                        goto out;
                   1448:                }
                   1449:
                   1450:                /* Calculate difference. */
                   1451:                change = thisy - cy;    /* +ve up, -ve down */
                   1452:
                   1453:                /*
1.77      nicm     1454:                 * Try to use VPA if change is larger than absolute or if this
                   1455:                 * change would cross the scroll region, otherwise use CUU/CUD.
1.42      nicm     1456:                 */
1.87      nicm     1457:                if ((u_int) abs(change) > cy ||
1.42      nicm     1458:                    (change < 0 && cy - change > tty->rlower) ||
1.44      nicm     1459:                    (change > 0 && cy - change < tty->rupper)) {
                   1460:                            if (tty_term_has(term, TTYC_VPA)) {
                   1461:                                    tty_putcode1(tty, TTYC_VPA, cy);
                   1462:                                    goto out;
                   1463:                            }
1.42      nicm     1464:                } else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
                   1465:                        tty_putcode1(tty, TTYC_CUU, change);
                   1466:                        goto out;
                   1467:                } else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
                   1468:                        tty_putcode1(tty, TTYC_CUD, -change);
                   1469:                        goto out;
                   1470:                }
                   1471:        }
                   1472:
1.43      nicm     1473: absolute:
1.42      nicm     1474:        /* Absolute movement. */
                   1475:        tty_putcode2(tty, TTYC_CUP, cy, cx);
                   1476:
                   1477: out:
                   1478:        tty->cx = cx;
                   1479:        tty->cy = cy;
1.1       nicm     1480: }
                   1481:
                   1482: void
1.176     nicm     1483: tty_attributes(struct tty *tty, const struct grid_cell *gc,
                   1484:     const struct window_pane *wp)
1.1       nicm     1485: {
1.63      nicm     1486:        struct grid_cell        *tc = &tty->cell, gc2;
1.85      nicm     1487:        u_char                   changed;
1.61      nicm     1488:
1.85      nicm     1489:        memcpy(&gc2, gc, sizeof gc2);
1.203     nicm     1490:        if (wp != NULL)
                   1491:                tty_default_colours(&gc2, wp);
1.63      nicm     1492:
1.18      nicm     1493:        /*
                   1494:         * If no setab, try to use the reverse attribute as a best-effort for a
                   1495:         * non-default background. This is a bit of a hack but it doesn't do
                   1496:         * any serious harm and makes a couple of applications happier.
                   1497:         */
                   1498:        if (!tty_term_has(tty->term, TTYC_SETAB)) {
1.85      nicm     1499:                if (gc2.attr & GRID_ATTR_REVERSE) {
                   1500:                        if (gc2.fg != 7 && gc2.fg != 8)
1.64      nicm     1501:                                gc2.attr &= ~GRID_ATTR_REVERSE;
1.18      nicm     1502:                } else {
1.85      nicm     1503:                        if (gc2.bg != 0 && gc2.bg != 8)
1.64      nicm     1504:                                gc2.attr |= GRID_ATTR_REVERSE;
1.18      nicm     1505:                }
                   1506:        }
1.1       nicm     1507:
1.85      nicm     1508:        /* Fix up the colours if necessary. */
1.219     nicm     1509:        tty_check_fg(tty, wp, &gc2);
                   1510:        tty_check_bg(tty, wp, &gc2);
1.85      nicm     1511:
1.64      nicm     1512:        /* If any bits are being cleared, reset everything. */
1.85      nicm     1513:        if (tc->attr & ~gc2.attr)
1.64      nicm     1514:                tty_reset(tty);
                   1515:
                   1516:        /*
                   1517:         * Set the colours. This may call tty_reset() (so it comes next) and
                   1518:         * may add to (NOT remove) the desired attributes by changing new_attr.
                   1519:         */
1.85      nicm     1520:        tty_colours(tty, &gc2);
1.64      nicm     1521:
1.1       nicm     1522:        /* Filter out attribute bits already set. */
1.85      nicm     1523:        changed = gc2.attr & ~tc->attr;
                   1524:        tc->attr = gc2.attr;
1.1       nicm     1525:
                   1526:        /* Set the attributes. */
                   1527:        if (changed & GRID_ATTR_BRIGHT)
                   1528:                tty_putcode(tty, TTYC_BOLD);
                   1529:        if (changed & GRID_ATTR_DIM)
                   1530:                tty_putcode(tty, TTYC_DIM);
1.180     nicm     1531:        if (changed & GRID_ATTR_ITALICS)
                   1532:                tty_set_italics(tty);
1.1       nicm     1533:        if (changed & GRID_ATTR_UNDERSCORE)
                   1534:                tty_putcode(tty, TTYC_SMUL);
                   1535:        if (changed & GRID_ATTR_BLINK)
                   1536:                tty_putcode(tty, TTYC_BLINK);
                   1537:        if (changed & GRID_ATTR_REVERSE) {
                   1538:                if (tty_term_has(tty->term, TTYC_REV))
                   1539:                        tty_putcode(tty, TTYC_REV);
                   1540:                else if (tty_term_has(tty->term, TTYC_SMSO))
                   1541:                        tty_putcode(tty, TTYC_SMSO);
                   1542:        }
                   1543:        if (changed & GRID_ATTR_HIDDEN)
                   1544:                tty_putcode(tty, TTYC_INVIS);
1.90      nicm     1545:        if ((changed & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1.1       nicm     1546:                tty_putcode(tty, TTYC_SMACS);
                   1547: }
                   1548:
1.207     nicm     1549: static void
1.85      nicm     1550: tty_colours(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1551: {
1.61      nicm     1552:        struct grid_cell        *tc = &tty->cell;
1.204     nicm     1553:        int                      have_ax;
1.61      nicm     1554:
                   1555:        /* No changes? Nothing is necessary. */
1.204     nicm     1556:        if (gc->fg == tc->fg && gc->bg == tc->bg)
1.63      nicm     1557:                return;
1.1       nicm     1558:
1.61      nicm     1559:        /*
                   1560:         * Is either the default colour? This is handled specially because the
                   1561:         * best solution might be to reset both colours to default, in which
                   1562:         * case if only one is default need to fall onward to set the other
                   1563:         * colour.
                   1564:         */
1.204     nicm     1565:        if (gc->fg == 8 || gc->bg == 8) {
1.61      nicm     1566:                /*
                   1567:                 * If don't have AX but do have op, send sgr0 (op can't
                   1568:                 * actually be used because it is sometimes the same as sgr0
                   1569:                 * and sometimes isn't). This resets both colours to default.
                   1570:                 *
                   1571:                 * Otherwise, try to set the default colour only as needed.
                   1572:                 */
1.174     nicm     1573:                have_ax = tty_term_flag(tty->term, TTYC_AX);
1.61      nicm     1574:                if (!have_ax && tty_term_has(tty->term, TTYC_OP))
                   1575:                        tty_reset(tty);
                   1576:                else {
1.204     nicm     1577:                        if (gc->fg == 8 && tc->fg != 8) {
1.61      nicm     1578:                                if (have_ax)
                   1579:                                        tty_puts(tty, "\033[39m");
1.204     nicm     1580:                                else if (tc->fg != 7)
1.61      nicm     1581:                                        tty_putcode1(tty, TTYC_SETAF, 7);
                   1582:                                tc->fg = 8;
                   1583:                        }
1.204     nicm     1584:                        if (gc->bg == 8 && tc->bg != 8) {
1.77      nicm     1585:                                if (have_ax)
1.61      nicm     1586:                                        tty_puts(tty, "\033[49m");
1.204     nicm     1587:                                else if (tc->bg != 0)
1.61      nicm     1588:                                        tty_putcode1(tty, TTYC_SETAB, 0);
                   1589:                                tc->bg = 8;
                   1590:                        }
                   1591:                }
                   1592:        }
1.1       nicm     1593:
1.61      nicm     1594:        /* Set the foreground colour. */
1.204     nicm     1595:        if (gc->fg != 8 && gc->fg != tc->fg)
1.85      nicm     1596:                tty_colours_fg(tty, gc);
1.1       nicm     1597:
1.61      nicm     1598:        /*
                   1599:         * Set the background colour. This must come after the foreground as
                   1600:         * tty_colour_fg() can call tty_reset().
                   1601:         */
1.204     nicm     1602:        if (gc->bg != 8 && gc->bg != tc->bg)
1.73      nicm     1603:                tty_colours_bg(tty, gc);
1.1       nicm     1604: }
                   1605:
1.219     nicm     1606: static void
                   1607: tty_check_fg(struct tty *tty, const struct window_pane *wp,
                   1608:     struct grid_cell *gc)
1.85      nicm     1609: {
1.204     nicm     1610:        u_char  r, g, b;
                   1611:        u_int   colours;
1.223     nicm     1612:        int     c;
1.85      nicm     1613:
1.219     nicm     1614:        /* Perform substitution if this pane has a palette */
                   1615:        if ((~gc->flags & GRID_FLAG_NOPALETTE) &&
1.223     nicm     1616:            (c = window_pane_get_palette(wp, gc->fg)) != -1)
                   1617:                gc->fg = c;
1.219     nicm     1618:
1.199     nicm     1619:        /* Is this a 24-bit colour? */
1.204     nicm     1620:        if (gc->fg & COLOUR_FLAG_RGB) {
1.199     nicm     1621:                /* Not a 24-bit terminal? Translate to 256-colour palette. */
                   1622:                if (!tty_term_flag(tty->term, TTYC_TC)) {
1.204     nicm     1623:                        colour_split_rgb(gc->fg, &r, &g, &b);
                   1624:                        gc->fg = colour_find_rgb(r, g, b);
                   1625:                } else
1.200     nicm     1626:                        return;
1.199     nicm     1627:        }
1.224   ! nicm     1628:
        !          1629:        /* How many colours does this terminal have? */
        !          1630:        if ((tty->term->flags|tty->term_flags) & TERM_256COLOURS)
        !          1631:                colours = 256;
        !          1632:        else
        !          1633:                colours = tty_term_number(tty->term, TTYC_COLORS);
1.175     nicm     1634:
1.85      nicm     1635:        /* Is this a 256-colour colour? */
1.204     nicm     1636:        if (gc->fg & COLOUR_FLAG_256) {
1.85      nicm     1637:                /* And not a 256 colour mode? */
1.224   ! nicm     1638:                if (colours != 256) {
1.85      nicm     1639:                        gc->fg = colour_256to16(gc->fg);
                   1640:                        if (gc->fg & 8) {
                   1641:                                gc->fg &= 7;
1.175     nicm     1642:                                if (colours >= 16)
                   1643:                                        gc->fg += 90;
                   1644:                                else
                   1645:                                        gc->attr |= GRID_ATTR_BRIGHT;
1.85      nicm     1646:                        } else
                   1647:                                gc->attr &= ~GRID_ATTR_BRIGHT;
                   1648:                }
                   1649:                return;
                   1650:        }
                   1651:
                   1652:        /* Is this an aixterm colour? */
                   1653:        if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) {
                   1654:                gc->fg -= 90;
                   1655:                gc->attr |= GRID_ATTR_BRIGHT;
                   1656:        }
                   1657: }
                   1658:
1.219     nicm     1659: static void
                   1660: tty_check_bg(struct tty *tty, const struct window_pane *wp,
                   1661:     struct grid_cell *gc)
1.85      nicm     1662: {
1.204     nicm     1663:        u_char  r, g, b;
                   1664:        u_int   colours;
1.223     nicm     1665:        int     c;
1.85      nicm     1666:
1.219     nicm     1667:        /* Perform substitution if this pane has a palette */
                   1668:        if ((~gc->flags & GRID_FLAG_NOPALETTE) &&
1.223     nicm     1669:            (c = window_pane_get_palette(wp, gc->bg)) != -1)
                   1670:                gc->bg = c;
1.219     nicm     1671:
1.199     nicm     1672:        /* Is this a 24-bit colour? */
1.204     nicm     1673:        if (gc->bg & COLOUR_FLAG_RGB) {
1.199     nicm     1674:                /* Not a 24-bit terminal? Translate to 256-colour palette. */
                   1675:                if (!tty_term_flag(tty->term, TTYC_TC)) {
1.204     nicm     1676:                        colour_split_rgb(gc->bg, &r, &g, &b);
                   1677:                        gc->bg = colour_find_rgb(r, g, b);
                   1678:                } else
1.200     nicm     1679:                        return;
1.199     nicm     1680:        }
1.224   ! nicm     1681:
        !          1682:        /* How many colours does this terminal have? */
        !          1683:        if ((tty->term->flags|tty->term_flags) & TERM_256COLOURS)
        !          1684:                colours = 256;
        !          1685:        else
        !          1686:                colours = tty_term_number(tty->term, TTYC_COLORS);
1.175     nicm     1687:
1.85      nicm     1688:        /* Is this a 256-colour colour? */
1.204     nicm     1689:        if (gc->bg & COLOUR_FLAG_256) {
1.85      nicm     1690:                /*
                   1691:                 * And not a 256 colour mode? Translate to 16-colour
                   1692:                 * palette. Bold background doesn't exist portably, so just
                   1693:                 * discard the bold bit if set.
                   1694:                 */
1.224   ! nicm     1695:                if (colours != 256) {
1.85      nicm     1696:                        gc->bg = colour_256to16(gc->bg);
1.175     nicm     1697:                        if (gc->bg & 8) {
1.85      nicm     1698:                                gc->bg &= 7;
1.175     nicm     1699:                                if (colours >= 16)
                   1700:                                        gc->fg += 90;
                   1701:                        }
1.85      nicm     1702:                }
                   1703:                return;
                   1704:        }
                   1705:
                   1706:        /* Is this an aixterm colour? */
1.175     nicm     1707:        if (gc->bg >= 90 && gc->bg <= 97 && colours < 16)
1.85      nicm     1708:                gc->bg -= 90;
                   1709: }
                   1710:
1.207     nicm     1711: static void
1.85      nicm     1712: tty_colours_fg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1713: {
1.61      nicm     1714:        struct grid_cell        *tc = &tty->cell;
1.79      nicm     1715:        char                     s[32];
1.1       nicm     1716:
1.204     nicm     1717:        /* Is this a 24-bit or 256-colour colour? */
                   1718:        if (gc->fg & COLOUR_FLAG_RGB ||
                   1719:            gc->fg & COLOUR_FLAG_256) {
                   1720:                if (tty_try_colour(tty, gc->fg, "38") == 0)
1.61      nicm     1721:                        goto save_fg;
1.199     nicm     1722:                /* Should not get here, already converted in tty_check_fg. */
1.85      nicm     1723:                return;
1.1       nicm     1724:        }
                   1725:
1.79      nicm     1726:        /* Is this an aixterm bright colour? */
1.204     nicm     1727:        if (gc->fg >= 90 && gc->fg <= 97) {
                   1728:                xsnprintf(s, sizeof s, "\033[%dm", gc->fg);
1.85      nicm     1729:                tty_puts(tty, s);
                   1730:                goto save_fg;
1.79      nicm     1731:        }
                   1732:
1.61      nicm     1733:        /* Otherwise set the foreground colour. */
1.204     nicm     1734:        tty_putcode1(tty, TTYC_SETAF, gc->fg);
1.61      nicm     1735:
1.77      nicm     1736: save_fg:
1.61      nicm     1737:        /* Save the new values in the terminal current cell. */
1.204     nicm     1738:        tc->fg = gc->fg;
1.1       nicm     1739: }
                   1740:
1.207     nicm     1741: static void
1.73      nicm     1742: tty_colours_bg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1743: {
1.61      nicm     1744:        struct grid_cell        *tc = &tty->cell;
1.79      nicm     1745:        char                     s[32];
1.1       nicm     1746:
1.204     nicm     1747:        /* Is this a 24-bit or 256-colour colour? */
                   1748:        if (gc->bg & COLOUR_FLAG_RGB ||
                   1749:            gc->bg & COLOUR_FLAG_256) {
                   1750:                if (tty_try_colour(tty, gc->bg, "48") == 0)
1.61      nicm     1751:                        goto save_bg;
1.199     nicm     1752:                /* Should not get here, already converted in tty_check_bg. */
1.85      nicm     1753:                return;
1.79      nicm     1754:        }
                   1755:
                   1756:        /* Is this an aixterm bright colour? */
1.204     nicm     1757:        if (gc->bg >= 90 && gc->bg <= 97) {
                   1758:                xsnprintf(s, sizeof s, "\033[%dm", gc->bg + 10);
1.175     nicm     1759:                tty_puts(tty, s);
                   1760:                goto save_bg;
1.1       nicm     1761:        }
                   1762:
1.61      nicm     1763:        /* Otherwise set the background colour. */
1.204     nicm     1764:        tty_putcode1(tty, TTYC_SETAB, gc->bg);
1.61      nicm     1765:
                   1766: save_bg:
                   1767:        /* Save the new values in the terminal current cell. */
1.204     nicm     1768:        tc->bg = gc->bg;
1.61      nicm     1769: }
                   1770:
1.207     nicm     1771: static int
1.204     nicm     1772: tty_try_colour(struct tty *tty, int colour, const char *type)
1.61      nicm     1773: {
1.204     nicm     1774:        u_char  r, g, b;
1.61      nicm     1775:        char    s[32];
                   1776:
1.204     nicm     1777:        if (colour & COLOUR_FLAG_256) {
                   1778:                /*
                   1779:                 * If the user has specified -2 to the client, setaf and setab
                   1780:                 * may not work (or they may not want to use them), so send the
                   1781:                 * usual sequence.
                   1782:                 */
                   1783:                if (tty->term_flags & TERM_256COLOURS)
                   1784:                        goto fallback_256;
1.189     nicm     1785:
1.204     nicm     1786:                /*
                   1787:                 * If the terminfo entry has 256 colours and setaf and setab
                   1788:                 * exist, assume that they work correctly.
                   1789:                 */
                   1790:                if (tty->term->flags & TERM_256COLOURS) {
                   1791:                        if (*type == '3') {
                   1792:                                if (!tty_term_has(tty->term, TTYC_SETAF))
                   1793:                                        goto fallback_256;
                   1794:                                tty_putcode1(tty, TTYC_SETAF, colour & 0xff);
                   1795:                        } else {
                   1796:                                if (!tty_term_has(tty->term, TTYC_SETAB))
                   1797:                                        goto fallback_256;
                   1798:                                tty_putcode1(tty, TTYC_SETAB, colour & 0xff);
                   1799:                        }
                   1800:                        return (0);
1.188     nicm     1801:                }
1.204     nicm     1802:                goto fallback_256;
                   1803:        }
                   1804:
                   1805:        if (colour & COLOUR_FLAG_RGB) {
                   1806:                if (!tty_term_flag(tty->term, TTYC_TC))
                   1807:                        return (-1);
                   1808:
                   1809:                colour_split_rgb(colour & 0xffffff, &r, &g, &b);
                   1810:                xsnprintf(s, sizeof s, "\033[%s;2;%hhu;%hhu;%hhum", type,
                   1811:                    r, g, b);
                   1812:                tty_puts(tty, s);
1.165     nicm     1813:                return (0);
                   1814:        }
1.61      nicm     1815:
1.165     nicm     1816:        return (-1);
1.188     nicm     1817:
1.204     nicm     1818: fallback_256:
                   1819:        xsnprintf(s, sizeof s, "\033[%s;5;%dm", type, colour & 0xff);
1.188     nicm     1820:        tty_puts(tty, s);
                   1821:        return (0);
1.176     nicm     1822: }
                   1823:
1.207     nicm     1824: static void
1.176     nicm     1825: tty_default_colours(struct grid_cell *gc, const struct window_pane *wp)
                   1826: {
1.203     nicm     1827:        struct window           *w = wp->window;
                   1828:        struct options          *oo = w->options;
                   1829:        const struct grid_cell  *agc, *pgc, *wgc;
1.223     nicm     1830:        int                      c;
1.203     nicm     1831:
                   1832:        if (w->flags & WINDOW_STYLECHANGED) {
                   1833:                w->flags &= ~WINDOW_STYLECHANGED;
                   1834:                agc = options_get_style(oo, "window-active-style");
                   1835:                memcpy(&w->active_style, agc, sizeof w->active_style);
                   1836:                wgc = options_get_style(oo, "window-style");
                   1837:                memcpy(&w->style, wgc, sizeof w->style);
                   1838:        } else {
                   1839:                agc = &w->active_style;
                   1840:                wgc = &w->style;
                   1841:        }
1.176     nicm     1842:        pgc = &wp->colgc;
                   1843:
1.204     nicm     1844:        if (gc->fg == 8) {
                   1845:                if (pgc->fg != 8)
1.176     nicm     1846:                        gc->fg = pgc->fg;
1.204     nicm     1847:                else if (wp == w->active && agc->fg != 8)
1.176     nicm     1848:                        gc->fg = agc->fg;
1.204     nicm     1849:                else
1.176     nicm     1850:                        gc->fg = wgc->fg;
1.219     nicm     1851:
1.223     nicm     1852:                if (gc->fg != 8 &&
                   1853:                    (c = window_pane_get_palette(wp, gc->fg)) != -1)
                   1854:                        gc->fg = c;
1.176     nicm     1855:        }
                   1856:
1.204     nicm     1857:        if (gc->bg == 8) {
                   1858:                if (pgc->bg != 8)
1.176     nicm     1859:                        gc->bg = pgc->bg;
1.204     nicm     1860:                else if (wp == w->active && agc->bg != 8)
1.176     nicm     1861:                        gc->bg = agc->bg;
1.204     nicm     1862:                else
1.176     nicm     1863:                        gc->bg = wgc->bg;
1.219     nicm     1864:
1.223     nicm     1865:                if (gc->bg != 8 &&
                   1866:                    (c = window_pane_get_palette(wp, gc->bg)) != -1)
                   1867:                        gc->bg = c;
1.176     nicm     1868:        }
1.210     nicm     1869: }
                   1870:
                   1871: static void
                   1872: tty_default_attributes(struct tty *tty, const struct window_pane *wp, u_int bg)
                   1873: {
                   1874:        static struct grid_cell gc;
                   1875:
                   1876:        memcpy(&gc, &grid_default_cell, sizeof gc);
                   1877:        gc.bg = bg;
                   1878:        tty_attributes(tty, &gc, wp);
1.1       nicm     1879: }