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

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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
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1
TODO
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@@ -171,7 +171,6 @@ TERMINAL ISSUES
- support for bce
- use screen-256color when started on 256 colour terminal??
- if-shell/run-shell should block further command execution in the same command
- possibly support rxvt-unicode extended mouse input (1015)
- wrap/no wrap esc seq DEC CSI ? 7 h/l
* We need a tmux terminfo entry to document the extensions we are using in
upstream terminfo. Must NOT change (only add or remove) anything from

17
input-keys.c
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@@ -201,12 +201,25 @@ input_key(struct window_pane *wp, int key)
void
input_mouse(struct window_pane *wp, struct session *s, struct mouse_event *m)
{
char buf[10];
char buf[40];
size_t len;
struct paste_buffer *pb;
if (wp->screen->mode & ALL_MOUSE_MODES) {
if (wp->screen->mode & MODE_MOUSE_UTF8) {
/*
* Use the SGR (1006) extension only if the application
* requested it and the underlying terminal also sent the event
* in this format (this is because an old style mouse release
* event cannot be converted into the new SGR format, since the
* released button is unknown). Otherwise pretend that tmux
* doesn't speak this extension, and fall back to the UTF-8
* (1005) extension if the application requested, or to the
* legacy format.
*/
if (m->sgr && (wp->screen->mode & MODE_MOUSE_SGR)) {
len = xsnprintf(buf, sizeof buf, "\033[<%d;%d;%d%c",
m->sgr_xb, m->x + 1, m->y + 1, m->sgr_rel ? 'm' : 'M');
} else if (wp->screen->mode & MODE_MOUSE_UTF8) {
len = xsnprintf(buf, sizeof buf, "\033[M");
len += utf8_split2(m->xb + 32, &buf[len]);
len += utf8_split2(m->x + 33, &buf[len]);

6
input.c
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@@ -1260,6 +1260,9 @@ input_csi_dispatch(struct input_ctx *ictx)
case 1005:
screen_write_mode_clear(&ictx->ctx, MODE_MOUSE_UTF8);
break;
case 1006:
screen_write_mode_clear(&ictx->ctx, MODE_MOUSE_SGR);
break;
case 47:
case 1047:
window_pane_alternate_off(wp, &ictx->cell, 0);
@@ -1320,6 +1323,9 @@ input_csi_dispatch(struct input_ctx *ictx)
case 1005:
screen_write_mode_set(&ictx->ctx, MODE_MOUSE_UTF8);
break;
case 1006:
screen_write_mode_set(&ictx->ctx, MODE_MOUSE_SGR);
break;
case 47:
case 1047:
window_pane_alternate_on(wp, &ictx->cell, 0);

4
screen-write.c
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@@ -55,7 +55,9 @@ screen_write_reset(struct screen_write_ctx *ctx)
screen_reset_tabs(s);
screen_write_scrollregion(ctx, 0, screen_size_y(s) - 1);
s->mode &= ~(MODE_INSERT|MODE_KCURSOR|MODE_KKEYPAD|ALL_MOUSE_MODES);
s->mode &= ~(MODE_INSERT|MODE_KCURSOR|MODE_KKEYPAD);
s->mode &= ~(ALL_MOUSE_MODES|MODE_MOUSE_UTF8|MODE_MOUSE_SGR);
screen_write_clearscreen(ctx);
screen_write_cursormove(ctx, 0, 0);

10
tmux.h
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@@ -661,7 +661,8 @@ struct mode_key_table {
#define MODE_MOUSE_BUTTON 0x40
#define MODE_MOUSE_ANY 0x80
#define MODE_MOUSE_UTF8 0x100
#define MODE_BRACKETPASTE 0x200
#define MODE_MOUSE_SGR 0x200
#define MODE_BRACKETPASTE 0x400
#define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ANY)
@@ -1149,6 +1150,9 @@ LIST_HEAD(tty_terms, tty_term);
* - bits 3, 4 and 5 are for keys
* - bit 6 is set for dragging
* - bit 7 for buttons 4 and 5
*
* With the SGR 1006 extension the released button becomes known. Store these
* in separate fields and store the value converted to the old format in xb.
*/
struct mouse_event {
u_int xb;
@@ -1161,6 +1165,10 @@ struct mouse_event {
u_int ly;
u_int sy;
u_int sgr; /* whether the input arrived in SGR format */
u_int sgr_xb; /* only for SGR: the unmangled button */
u_int sgr_rel; /* only for SGR: whether it is a release event */
u_int button;
u_int clicks;

140
tty-keys.c
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@@ -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)

15
tty.c
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@@ -218,7 +218,7 @@ tty_start_tty(struct tty *tty)
tty_putcode(tty, TTYC_CNORM);
if (tty_term_has(tty->term, TTYC_KMOUS))
tty_puts(tty, "\033[?1000l");
tty_puts(tty, "\033[?1000l\033[?1006l\033[?1005l");
if (tty_term_has(tty->term, TTYC_XT))
tty_puts(tty, "\033[c\033[>4;1m");
@@ -281,7 +281,7 @@ tty_stop_tty(struct tty *tty)
tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
if (tty_term_has(tty->term, TTYC_KMOUS))
tty_raw(tty, "\033[?1000l");
tty_raw(tty, "\033[?1000l\033[?1006l\033[?1005l");
if (tty_term_has(tty->term, TTYC_XT))
tty_puts(tty, "\033[>4m");
@@ -491,8 +491,17 @@ tty_update_mode(struct tty *tty, int mode, struct screen *s)
}
if (changed & ALL_MOUSE_MODES) {
if (mode & ALL_MOUSE_MODES) {
/*
* Enable the UTF-8 (1005) extension if configured to.
* Enable the SGR (1006) extension unconditionally, as
* this is safe from misinterpretation. Do it in this
* order, because in some terminals it's the last one
* that takes effect and SGR is the preferred one.
*/
if (mode & MODE_MOUSE_UTF8)
tty_puts(tty, "\033[?1005h");
tty_puts(tty, "\033[?1006h");
if (mode & MODE_MOUSE_ANY)
tty_puts(tty, "\033[?1003h");
else if (mode & MODE_MOUSE_BUTTON)
@@ -506,6 +515,8 @@ tty_update_mode(struct tty *tty, int mode, struct screen *s)
tty_puts(tty, "\033[?1002l");
else if (tty->mode & MODE_MOUSE_STANDARD)
tty_puts(tty, "\033[?1000l");
tty_puts(tty, "\033[?1006l");
if (tty->mode & MODE_MOUSE_UTF8)
tty_puts(tty, "\033[?1005l");
}