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Add Kitty keyboard protocol support

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This commit is contained in:
Michael Grant
2026-09-14 14:14:28 +01:00
parent 3a5df8780f
commit 5e5cc3e5bc
17 changed files with 1256 additions and 25 deletions
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29
tty-keys.c
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@@ -782,6 +782,17 @@ tty_keys_next(struct tty *tty)
goto partial_key;
}
/* Is this a Kitty keyboard protocol response? */
switch (tty_keys_kitty_query(tty, buf, len, &size)) {
case 0: /* yes */
key = KEYC_UNKNOWN;
goto complete_key;
case -1: /* no, or not valid */
break;
case 1: /* partial */
goto partial_key;
}
/* Is this a synchronized update mode response? */
switch (tty_keys_sync(tty, buf, len, &size)) {
case 0: /* yes */
@@ -868,6 +879,18 @@ tty_keys_next(struct tty *tty)
goto partial_key;
}
/* Is this an extended key press? */
switch (tty_keys_kitty(tty, buf, len, &size, &key)) {
case 0: /* yes */
goto complete_key;
case -1: /* no, or not valid */
break;
case -2: /* yes, but not representable by tmux */
goto discard_key;
case 1: /* partial */
goto partial_key;
}
/* Is this an extended key press? */
switch (tty_keys_extended_key(tty, buf, len, &size, &key)) {
case 0: /* yes */
@@ -1099,6 +1122,9 @@ tty_keys_extended_key(struct tty *tty, const char *buf, size_t len,
utf8_char uc;
*size = 0;
if (options_get_number(global_options, "extended-keys-format") ==
EXTENDED_KEYS_KITTY)
return (-1);
/* First two bytes are always \033[. */
if (buf[0] != '\033')
@@ -1537,6 +1563,9 @@ tty_keys_device_attributes(struct tty *tty, const char *buf, size_t len,
}
log_debug("%s: received primary DA %.*s", c->name, (int)*size, buf);
/* A DA response without a preceding keyboard response means no support. */
if (~tty->flags & TTY_HAVEKKB)
tty->flags |= TTY_HAVEKKB;
tty_update_features(tty);
tty->flags |= TTY_HAVEDA;