Support the latest theory for mouse input, this is enabled/disabled with SM/RM

1006 and is similar in style to SGR input: \033[<b;x;yM or \033[b;x;ym. From
Egmont Koblinger.
This commit is contained in:
Nicholas Marriott
2013-02-18 14:52:27 +00:00
parent d8261019f1
commit e5eee7de0c
7 changed files with 145 additions and 48 deletions

View File

@ -587,20 +587,26 @@ tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size)
{
struct mouse_event *m = &tty->mouse;
struct utf8_data utf8data;
u_int i, value, x, y, b;
u_int i, value, x, y, b, sgr, sgr_b, sgr_rel;
unsigned char c;
/*
* Standard mouse sequences are \033[M followed by three characters
* indicating buttons, X and Y, all based at 32 with 1,1 top-left.
* indicating button, X and Y, all based at 32 with 1,1 top-left.
*
* UTF-8 mouse sequences are similar but the three are expressed as
* UTF-8 characters.
*
* SGR extended mouse sequences are \033[< followed by three numbers in
* decimal and separated by semicolons indicating button, X and Y. A
* trailing 'M' is click or scroll and trailing 'm' release. All are
* based at 0 with 1,1 top-left.
*/
*size = 0;
x = y = b = 0;
x = y = b = sgr = sgr_b = sgr_rel = 0;
/* First three bytes are always \033[M. */
/* First two bytes are always \033[. */
if (buf[0] != '\033')
return (-1);
if (len == 1)
@ -609,50 +615,99 @@ tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size)
return (-1);
if (len == 2)
return (1);
if (buf[2] != 'M')
return (-1);
if (len == 3)
return (1);
/* Read the three inputs. */
*size = 3;
for (i = 0; i < 3; i++) {
if (len < *size)
return (1);
/*
* Third byte is M in old standard and UTF-8 extension, < in SGR
* extension.
*/
if (buf[2] == 'M') {
/* Read the three inputs. */
*size = 3;
for (i = 0; i < 3; i++) {
if (len <= *size)
return (1);
if (tty->mode & MODE_MOUSE_UTF8) {
if (utf8_open(&utf8data, buf[*size])) {
if (utf8data.size != 2)
return (-1);
if (tty->mode & MODE_MOUSE_UTF8) {
if (utf8_open(&utf8data, buf[*size])) {
if (utf8data.size != 2)
return (-1);
(*size)++;
if (len <= *size)
return (1);
utf8_append(&utf8data, buf[*size]);
value = utf8_combine(&utf8data);
} else
value = (u_char) buf[*size];
(*size)++;
if (len < *size)
return (1);
utf8_append(&utf8data, buf[*size]);
value = utf8_combine(&utf8data);
} else
value = (unsigned char)buf[*size];
(*size)++;
} else {
value = (unsigned char)buf[*size];
(*size)++;
} else {
value = (u_char) buf[*size];
(*size)++;
}
if (i == 0)
b = value;
else if (i == 1)
x = value;
else
y = value;
}
log_debug("mouse input: %.*s", (int) *size, buf);
if (i == 0)
b = value;
else if (i == 1)
x = value;
else
y = value;
}
log_debug("mouse input: %.*s", (int) *size, buf);
/* Check and return the mouse input. */
if (b < 32 || x < 33 || y < 33)
return (-1);
b -= 32;
x -= 33;
y -= 33;
} else if (buf[2] == '<') {
/* Read the three inputs. */
*size = 3;
while (1) {
if (len <= *size)
return (1);
c = (u_char)buf[(*size)++];
if (c == ';')
break;
if (c < '0' || c > '9')
return (-1);
sgr_b = 10 * sgr_b + (c - '0');
}
while (1) {
if (len <= *size)
return (1);
c = (u_char)buf[(*size)++];
if (c == ';')
break;
if (c < '0' || c > '9')
return (-1);
x = 10 * x + (c - '0');
}
while (1) {
if (len <= *size)
return (1);
c = (u_char) buf[(*size)++];
if (c == 'M' || c == 'm')
break;
if (c < '0' || c > '9')
return (-1);
y = 10 * y + (c - '0');
}
log_debug("mouse input (sgr): %.*s", (int) *size, buf);
/* Check and return the mouse input. */
if (b < 32 || x < 33 || y < 33)
/* Check and return the mouse input. */
if (x < 1 || y < 1)
return (-1);
x--;
y--;
sgr = 1;
sgr_rel = (c == 'm');
/* Figure out what b would be in old format. */
b = sgr_b;
if (sgr_rel)
b |= 3;
} else
return (-1);
b -= 32;
x -= 33;
y -= 33;
log_debug("mouse position: x=%u y=%u b=%u", x, y, b);
/* Fill in mouse structure. */
if (~m->event & MOUSE_EVENT_WHEEL) {
@ -660,6 +715,9 @@ tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size)
m->ly = m->y;
}
m->xb = b;
m->sgr = sgr;
m->sgr_xb = sgr_b;
m->sgr_rel = sgr_rel;
if (b & 64) { /* wheel button */
b &= 3;
if (b == 0)