Change cursor style handling so tmux understands which sequences contain

blinking and sets the flag appropriately, means that it works whether cnorm
disables blinking or not. GitHub issue 2682.
pull/2695/head
Nicholas Marriott 2021-04-28 09:15:11 +01:00
parent cf6034da92
commit 589d3eb48f
3 changed files with 120 additions and 43 deletions

View File

@ -80,7 +80,7 @@ screen_init(struct screen *s, u_int sx, u_int sy, u_int hlimit)
s->titles = NULL;
s->path = NULL;
s->cstyle = 0;
s->cstyle = SCREEN_CURSOR_DEFAULT;
s->ccolour = xstrdup("");
s->tabs = NULL;
s->sel = NULL;
@ -155,9 +155,35 @@ screen_reset_tabs(struct screen *s)
void
screen_set_cursor_style(struct screen *s, u_int style)
{
if (style <= 6) {
s->cstyle = style;
switch (style)
{
case 0:
s->cstyle = SCREEN_CURSOR_DEFAULT;
break;
case 1:
s->cstyle = SCREEN_CURSOR_BLOCK;
s->mode |= MODE_BLINKING;
break;
case 2:
s->cstyle = SCREEN_CURSOR_BLOCK;
s->mode &= ~MODE_BLINKING;
break;
case 3:
s->cstyle = SCREEN_CURSOR_UNDERLINE;
s->mode |= MODE_BLINKING;
break;
case 4:
s->cstyle = SCREEN_CURSOR_UNDERLINE;
s->mode &= ~MODE_BLINKING;
break;
case 5:
s->cstyle = SCREEN_CURSOR_BAR;
s->mode |= MODE_BLINKING;
break;
case 6:
s->cstyle = SCREEN_CURSOR_BAR;
s->mode &= ~MODE_BLINKING;
break;
}
}

14
tmux.h
View File

@ -795,6 +795,14 @@ struct style {
enum style_default_type default_type;
};
/* Cursor style. */
enum screen_cursor_style {
SCREEN_CURSOR_DEFAULT,
SCREEN_CURSOR_BLOCK,
SCREEN_CURSOR_UNDERLINE,
SCREEN_CURSOR_BAR
};
/* Virtual screen. */
struct screen_sel;
struct screen_titles;
@ -808,8 +816,8 @@ struct screen {
u_int cx; /* cursor x */
u_int cy; /* cursor y */
u_int cstyle; /* cursor style */
char *ccolour; /* cursor colour string */
enum screen_cursor_style cstyle; /* cursor style */
char *ccolour; /* cursor colour */
u_int rupper; /* scroll region top */
u_int rlower; /* scroll region bottom */
@ -1297,7 +1305,7 @@ struct tty {
u_int cx;
u_int cy;
u_int cstyle;
enum screen_cursor_style cstyle;
char *ccolour;
int oflag;

117
tty.c
View File

@ -98,7 +98,7 @@ tty_init(struct tty *tty, struct client *c)
memset(tty, 0, sizeof *tty);
tty->client = c;
tty->cstyle = 0;
tty->cstyle = SCREEN_CURSOR_DEFAULT;
tty->ccolour = xstrdup("");
if (tcgetattr(c->fd, &tty->tio) != 0)
@ -392,10 +392,10 @@ tty_stop_tty(struct tty *tty)
tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) {
if (tty->cstyle != SCREEN_CURSOR_DEFAULT) {
if (tty_term_has(tty->term, TTYC_SE))
tty_raw(tty, tty_term_string(tty->term, TTYC_SE));
else
else if (tty_term_has(tty->term, TTYC_SS))
tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0));
}
if (tty->mode & MODE_BRACKETPASTE)
@ -657,11 +657,9 @@ tty_force_cursor_colour(struct tty *tty, const char *ccolour)
void
tty_update_mode(struct tty *tty, int mode, struct screen *s)
{
struct client *c = tty->client;
int changed;
if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0)
tty_force_cursor_colour(tty, s->ccolour);
struct client *c = tty->client;
int changed;
enum screen_cursor_style cstyle = tty->cstyle;
if (tty->flags & TTY_NOCURSOR)
mode &= ~MODE_CURSOR;
@ -670,38 +668,83 @@ tty_update_mode(struct tty *tty, int mode, struct screen *s)
if (changed != 0)
log_debug("%s: update mode %x to %x", c->name, tty->mode, mode);
/*
* The cursor blinking flag can be reset by setting the cursor style, so
* set the style first.
*/
if (s != NULL && tty->cstyle != s->cstyle) {
if (tty_term_has(tty->term, TTYC_SS)) {
if (s->cstyle == 0 && tty_term_has(tty->term, TTYC_SE))
tty_putcode(tty, TTYC_SE);
else
tty_putcode1(tty, TTYC_SS, s->cstyle);
}
tty->cstyle = s->cstyle;
changed |= (MODE_CURSOR|MODE_BLINKING);
if (s != NULL) {
if (strcmp(s->ccolour, tty->ccolour) != 0)
tty_force_cursor_colour(tty, s->ccolour);
cstyle = s->cstyle;
}
/*
* Cursor invisible (RM ?25) overrides cursor blinking (SM ?12 or RM
* 34), and we need to be careful not send cnorm after cvvis since it
* can undo it.
*/
if (changed & (MODE_CURSOR|MODE_BLINKING)) {
log_debug("%s: cursor %s, %sblinking", __func__,
(mode & MODE_CURSOR) ? "on" : "off",
(mode & MODE_BLINKING) ? "" : "not ");
if (~mode & MODE_CURSOR)
if (~mode & MODE_CURSOR) {
/* Cursor now off - set as invisible. */
if (changed & MODE_CURSOR)
tty_putcode(tty, TTYC_CIVIS);
else if (mode & MODE_BLINKING) {
tty_putcode(tty, TTYC_CNORM);
if (tty_term_has(tty->term, TTYC_CVVIS))
} else if ((changed & (MODE_CURSOR|MODE_BLINKING)) ||
cstyle != tty->cstyle) {
/*
* Cursor now on, blinking flag changed or style changed. Start
* by setting the cursor to normal.
*/
tty_putcode(tty, TTYC_CNORM);
switch (cstyle) {
case SCREEN_CURSOR_DEFAULT:
/*
* If the old style wasn't default, then reset it to
* default.
*/
if (tty->cstyle != SCREEN_CURSOR_DEFAULT) {
if (tty_term_has(tty->term, TTYC_SE))
tty_putcode(tty, TTYC_SE);
else
tty_putcode1(tty, TTYC_SS, 0);
}
/* Set the cursor as very visible if necessary. */
if (mode & MODE_BLINKING)
tty_putcode(tty, TTYC_CVVIS);
} else
tty_putcode(tty, TTYC_CNORM);
break;
case SCREEN_CURSOR_BLOCK:
/*
* Set style to either block blinking (1) or steady (2)
* if supported, otherwise just check the blinking
* flag.
*/
if (tty_term_has(tty->term, TTYC_SS)) {
if (mode & MODE_BLINKING)
tty_putcode1(tty, TTYC_SS, 1);
else
tty_putcode1(tty, TTYC_SS, 2);
} else if (mode & MODE_BLINKING)
tty_putcode(tty, TTYC_CVVIS);
break;
case SCREEN_CURSOR_UNDERLINE:
/*
* Set style to either underline blinking (3) or steady
* (4) if supported, otherwise just check the blinking
* flag.
*/
if (tty_term_has(tty->term, TTYC_SS)) {
if (mode & MODE_BLINKING)
tty_putcode1(tty, TTYC_SS, 3);
else
tty_putcode1(tty, TTYC_SS, 4);
} else if (mode & MODE_BLINKING)
tty_putcode(tty, TTYC_CVVIS);
break;
case SCREEN_CURSOR_BAR:
/*
* Set style to either bar blinking (5) or steady (6)
* if supported, otherwise just check the blinking
* flag.
*/
if (tty_term_has(tty->term, TTYC_SS)) {
if (mode & MODE_BLINKING)
tty_putcode1(tty, TTYC_SS, 5);
else
tty_putcode1(tty, TTYC_SS, 6);
} else if (mode & MODE_BLINKING)
tty_putcode(tty, TTYC_CVVIS);
break;
}
tty->cstyle = cstyle;
}
if ((changed & ALL_MOUSE_MODES) &&