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Separate "very visible" flag from blinking flag, it should not affect

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DECSCUSR. GitHub issue 2891.
This commit is contained in:
nicm
2021-10-05 12:46:02 +00:00
parent 3d5a02bf45
commit 9b1fdb291e
4 changed files with 93 additions and 96 deletions
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159
tty.c
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@ -314,7 +314,7 @@ tty_start_tty(struct tty *tty)
tio.c_cc[VMIN] = 1;
tio.c_cc[VTIME] = 0;
if (tcsetattr(c->fd, TCSANOW, &tio) == 0)
tcflush(c->fd, TCIOFLUSH);
tcflush(c->fd, TCOFLUSH);
tty_putcode(tty, TTYC_SMCUP);
@ -658,12 +658,83 @@ tty_force_cursor_colour(struct tty *tty, const char *ccolour)
tty->ccolour = xstrdup(ccolour);
}
static void
tty_update_cursor(struct tty *tty, int mode, int changed, struct screen *s)
{
enum screen_cursor_style cstyle;
/* Set cursor colour if changed. */
if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0)
tty_force_cursor_colour(tty, s->ccolour);
/* If cursor is off, set as invisible. */
if (~mode & MODE_CURSOR) {
if (changed & MODE_CURSOR)
tty_putcode(tty, TTYC_CIVIS);
return;
}
/* Check if blinking or very visible flag changed or style changed. */
if (s == NULL)
cstyle = tty->cstyle;
else
cstyle = s->cstyle;
if ((changed & CURSOR_MODES) == 0 && cstyle == tty->cstyle)
return;
/*
* Set cursor style. If an explicit style has been set with DECSCUSR,
* set it if supported, otherwise send cvvis for blinking styles.
*
* If no style, has been set (SCREEN_CURSOR_DEFAULT), then send cvvis
* if either the blinking or very visible flags are set.
*/
tty_putcode(tty, TTYC_CNORM);
switch (cstyle) {
case SCREEN_CURSOR_DEFAULT:
if (tty_term_has(tty->term, TTYC_SE))
tty_putcode(tty, TTYC_SE);
else
tty_putcode1(tty, TTYC_SS, 0);
if (mode & (MODE_CURSOR_BLINKING|MODE_CURSOR_VERY_VISIBLE))
tty_putcode(tty, TTYC_CVVIS);
break;
case SCREEN_CURSOR_BLOCK:
if (tty_term_has(tty->term, TTYC_SS)) {
if (mode & MODE_CURSOR_BLINKING)
tty_putcode1(tty, TTYC_SS, 1);
else
tty_putcode1(tty, TTYC_SS, 2);
} else if (mode & MODE_CURSOR_BLINKING)
tty_putcode(tty, TTYC_CVVIS);
break;
case SCREEN_CURSOR_UNDERLINE:
if (tty_term_has(tty->term, TTYC_SS)) {
if (mode & MODE_CURSOR_BLINKING)
tty_putcode1(tty, TTYC_SS, 3);
else
tty_putcode1(tty, TTYC_SS, 4);
} else if (mode & MODE_CURSOR_BLINKING)
tty_putcode(tty, TTYC_CVVIS);
break;
case SCREEN_CURSOR_BAR:
if (tty_term_has(tty->term, TTYC_SS)) {
if (mode & MODE_CURSOR_BLINKING)
tty_putcode1(tty, TTYC_SS, 5);
else
tty_putcode1(tty, TTYC_SS, 6);
} else if (mode & MODE_CURSOR_BLINKING)
tty_putcode(tty, TTYC_CVVIS);
break;
}
tty->cstyle = cstyle;
}
void
tty_update_mode(struct tty *tty, int mode, struct screen *s)
{
struct client *c = tty->client;
int changed;
enum screen_cursor_style cstyle = tty->cstyle;
struct client *c = tty->client;
int changed;
if (tty->flags & TTY_NOCURSOR)
mode &= ~MODE_CURSOR;
@ -676,85 +747,7 @@ tty_update_mode(struct tty *tty, int mode, struct screen *s)
screen_mode_to_string(mode));
}
if (s != NULL) {
if (strcmp(s->ccolour, tty->ccolour) != 0)
tty_force_cursor_colour(tty, s->ccolour);
cstyle = s->cstyle;
}
if (~mode & MODE_CURSOR) {
/* Cursor now off - set as invisible. */
if (changed & MODE_CURSOR)
tty_putcode(tty, TTYC_CIVIS);
} 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);
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;
}
tty_update_cursor(tty, mode, changed, s);
if ((changed & ALL_MOUSE_MODES) &&
tty_term_has(tty->term, TTYC_KMOUS)) {
/*