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mouse.c
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/* $Id: mouse.c,v 1.47 2024/12/05 00:37:39 tom Exp $ */
#include <vttest.h>
#include <esc.h>
#include <ttymodes.h>
#define MCHR(c) (unsigned)((unsigned)((c) - ' ') & 0xff)
#define isQuit(c) (((c) == 'q') || ((c) == 'Q'))
#define isReport(c) (get_level() >= 3 && (((c) == 'r') || ((c) == 'R')))
#define isClear(c) ((c) == ' ')
#define ToData(n) vt_move(report_row = 4 + n, report_col = 10)
typedef enum {
cDFT = 0,
cUTF = 1005,
cSGR = 1006,
cURX = 1015,
cSGRp = 1016
} COORDS;
static int do_ExtCoords;
static int do_ExtPixels;
static int do_FocusEvent;
static int chars_high;
static int chars_wide;
static int pixels_high;
static int pixels_wide;
static int pixels_xpos;
static int pixels_ypos;
static int pixels_xchr;
static int pixels_ychr;
/*
* If the terminal responds to the window-size reports, use that to determine
* the scaling for pixel-coordinates.
*/
static int
can_do_pixels(void)
{
static int first = TRUE;
int result = FALSE;
if (first) {
char *report;
int reply;
char final;
char extra;
first = FALSE;
result = TRUE;
set_tty_raw(TRUE);
set_tty_echo(FALSE);
brc(13, 't');
report = get_reply();
if ((report = skip_csi(report)) == NULL
|| sscanf(report,
"%d;%d;%d%c%c",
&reply,
&pixels_ypos,
&pixels_xpos,
&final,
&extra) != 4
|| reply != 3
|| pixels_ypos <= 0
|| pixels_xpos <= 0
|| final != 't') {
result = FALSE;
} else {
brc(14, 't');
report = get_reply();
if ((report = skip_csi(report)) == NULL
|| sscanf(report,
"%d;%d;%d%c%c",
&reply,
&pixels_high,
&pixels_wide,
&final,
&extra) != 4
|| reply != 4
|| pixels_high <= 0
|| pixels_wide <= 0
|| final != 't') {
result = FALSE;
} else {
brc(16, 't');
report = get_reply();
if ((report = skip_csi(report)) == NULL
|| sscanf(report,
"%d;%d;%d%c%c",
&reply,
&pixels_ychr,
&pixels_xchr,
&final,
&extra) != 4
|| reply != 6
|| pixels_ychr <= 0
|| pixels_xchr <= 0
|| final != 't') {
result = FALSE;
}
}
}
restore_ttymodes();
if (result && LOG_ENABLED) {
fprintf(log_fp, NOTE_STR "screen %dx%d at %d,%d (cell %dx%d)\n",
pixels_high, pixels_wide,
pixels_ypos, pixels_xpos,
pixels_ychr, pixels_xchr);
}
}
return result;
}
static const char *
nameOfExtCoords(int code)
{
const char *result;
switch (code) {
case cUTF:
result = "UTF-8";
break;
case cSGR:
result = "SGR";
break;
case cURX:
result = "urxvt-style";
break;
case cSGRp:
result = "SGR/pixels";
break;
default:
result = "normal";
break;
}
return result;
}
static void
show_mousehelp(void)
{
if (get_level() >= 3)
println("Press 'q' to quit, 'r' to report modes, ' ' to clear.");
else
println("Press 'q' to quit, ' ' to clear.");
}
static unsigned
xterm_coord(char *source, int *pos)
{
unsigned result;
switch (do_ExtCoords) {
case cUTF:
{
int used;
const char *real_src = source + *pos;
unsigned limit = (unsigned) strlen(real_src);
used = conv_to_utf32((unsigned *) 0, real_src, limit);
if (used > 0) {
(void) conv_to_utf32(&result, real_src, limit);
*pos += used;
if (result > ' ')
result -= ' ';
else
result = 0;
} else {
result = 0;
}
}
break;
case cSGR:
case cSGRp:
result = 0;
break;
case cURX:
result = 0;
break;
default:
{
result = MCHR(source[*pos]);
*pos += 1;
}
break;
}
return result;
}
static unsigned
sgr_param(char **report, int final, unsigned offset)
{
unsigned result = 0;
if (*report != NULL) {
char *base = *report;
char *endp = NULL;
long value = strtol(base, &endp, 10);
if (value >= (long) offset
&& (endp == NULL
|| (*endp == 0 || *endp == ';' || *endp == final))) {
result = (unsigned) value - offset;
if (endp != NULL) {
if (*endp == ';')
++endp;
*report = endp;
} else {
*report = base + strlen(base);
}
} else {
*report = NULL;
result = offset;
}
}
return result;
}
static char *
skip_params(char *report)
{
return report + strspn(report, "0123456789;");
}
/*
* Parse the mouse position report. This is the usual case, containing the 'M'
* response (as well as variations on it).
*/
static char *
parse_mouse_M(char *report, unsigned *b, unsigned *x, unsigned *y)
{
char *result = NULL;
if ((report = skip_csi(report)) != NULL) {
char *finalp;
switch (do_ExtCoords) {
default:
case cUTF:
if (*report == 'M'
&& strlen(report) >= 4) {
int pos = 2;
*b = MCHR(report[1]);
*x = xterm_coord(report, &pos);
*y = xterm_coord(report, &pos);
result = report + pos;
}
break;
case cSGR:
case cSGRp:
if (*report++ == '<') {
finalp = skip_params(report);
if (*finalp == 'M') {
/* pressed */
*b = sgr_param(&report, 'M', 0);
*x = sgr_param(&report, 'M', 0);
*y = sgr_param(&report, 'M', 0);
result = ++finalp;
} else if (*finalp == 'm') {
/* released */
*b = sgr_param(&report, 'm', 0);
*x = sgr_param(&report, 'm', 0);
*y = sgr_param(&report, 'm', 0);
result = ++finalp;
}
}
break;
case cURX:
finalp = skip_params(report);
if (*finalp == 'M') {
*b = sgr_param(&report, 'M', 32);
*x = sgr_param(&report, 'M', 0);
*y = sgr_param(&report, 'M', 0);
result = ++finalp;
}
break;
}
}
return result;
}
/*
* Parse the mouse report, looking for the 'T' response, which is part of
* mouse highlight-tracking.
*/
static char *
parse_mouse_T(char *report,
unsigned *start_x,
unsigned *start_y,
unsigned *end_x,
unsigned *end_y,
unsigned *mouse_x,
unsigned *mouse_y)
{
char *result = NULL;
if ((report = skip_csi(report)) != NULL) {
char *finalp;
switch (do_ExtCoords) {
default:
case cUTF:
if (*report == 'M'
&& strlen(report) >= 7) {
int pos = 1;
*start_x = xterm_coord(report, &pos);
*start_y = xterm_coord(report, &pos);
*end_x = xterm_coord(report, &pos);
*end_y = xterm_coord(report, &pos);
*mouse_x = xterm_coord(report, &pos);
*mouse_y = xterm_coord(report, &pos);
result = report + pos;
}
break;
case cSGR:
case cSGRp:
if (*report++ != '<')
break;
/* FALLTHRU */
case cURX:
finalp = skip_params(report);
if (*finalp == 'T') {
*start_x = sgr_param(&report, 'T', 0);
*start_y = sgr_param(&report, 'T', 0);
*end_x = sgr_param(&report, 'T', 0);
*end_y = sgr_param(&report, 'T', 0);
*mouse_x = sgr_param(&report, 'T', 0);
*mouse_y = sgr_param(&report, 'T', 0);
result = ++finalp;
}
break;
}
}
return result;
}
/*
* Parse the mouse report, looking for the 't' response, which is part of mouse
* highlight-tracking.
*/
static char *
parse_mouse_t(char *report, unsigned *x, unsigned *y)
{
char *result = NULL;
if ((report = skip_csi(report)) != NULL) {
char *finalp;
switch (do_ExtCoords) {
default:
case cUTF:
if (*report == 't'
&& strlen(report) >= 3) {
int pos = 1;
*x = xterm_coord(report, &pos);
*y = xterm_coord(report, &pos);
}
break;
case cSGR:
case cSGRp:
if (*report++ != '<')
break;
/* FALLTHRU */
case cURX:
finalp = skip_params(report);
if (*finalp == 't') {
*x = sgr_param(&report, 't', 0);
*y = sgr_param(&report, 't', 0);
result = ++finalp;
}
break;
}
}
return result;
}
static void
cat_button(char *dst, const char *src)
{
if (*dst != '\0')
strcat(dst, ", ");
strcat(dst, src);
}
static char *
locator_button(unsigned b)
{
static char result[80];
if (b) {
result[0] = 0;
if (b & 1)
cat_button(result, "right");
if (b & 2)
cat_button(result, "middle");
if (b & 4)
cat_button(result, "left");
if (b & 8)
cat_button(result, "M4");
} else {
strcpy(result, "no buttons down");
}
return result;
}
static const char *
locator_event(int e)
{
const char *result;
switch (e) {
case 0:
result = "locator unavailable";
break;
case 1:
result = "request - received a DECRQLP";
break;
case 2:
result = "left button down";
break;
case 3:
result = "left button up";
break;
case 4:
result = "middle button down";
break;
case 5:
result = "middle button up";
break;
case 6:
result = "right button down";
break;
case 7:
result = "right button up";
break;
case 8:
result = "M4 button down";
break;
case 9:
result = "M4 button up";
break;
case 10:
result = "locator outside filter rectangle";
break;
default:
result = "unknown event";
break;
}
return result;
}
static void
show_click(unsigned y, unsigned x, int c)
{
if (do_ExtPixels) {
y = (y + (unsigned) pixels_ychr - 1) / (unsigned) pixels_ychr;
x = (x + (unsigned) pixels_xchr - 1) / (unsigned) pixels_xchr;
}
cup((int) y, (int) x);
putchar(c);
vt_move((int) y, (int) x);
fflush(stdout);
}
/* Print the corners of the highlight-region. Note that xterm doesn't use
* the last row.
*/
static void
show_hilite(int first, int last)
{
/* *INDENT-OFF* */
vt_move(first, 1); tprintf("+");
vt_move(last-1, 1); tprintf("+");
vt_move(first, min_cols); tprintf("+");
vt_move(last-1, min_cols); tprintf("+");
/* *INDENT-ON* */
fflush(stdout);
}
static void
show_locator_rectangle(void)
{
const int first = 10;
const int last = 20;
decefr(first, 1, last, min_cols);
show_hilite(first, last);
}
#define SCALED(value,range) \
((value * (unsigned) range + (unsigned) (range - 1)) / (unsigned) range)
static int
show_locator_report(char *report, int row, int pixels)
{
int Pe, Pb, Pp;
unsigned Pr, Pc;
int now = row;
int report_row, report_col;
ToData(0);
vt_el(2);
chrprint2(report, report_row, report_col);
while ((report = skip_csi(report)) != NULL
&& (sscanf(report,
"%d;%d;%u;%u&w", &Pe, &Pb, &Pr, &Pc) == 4
|| sscanf(report,
"%d;%d;%u;%u;%d&w", &Pe, &Pb, &Pr, &Pc, &Pp) == 5)) {
vt_move(row, 10);
vt_el(2);
show_result("%s - %s (%d,%d)",
locator_event(Pe),
locator_button((unsigned) Pb),
Pr, Pc);
vt_el(0);
if (pixels) {
if (pixels_high > 0 && pixels_wide > 0) {
Pr = SCALED(Pr, pixels_high);
Pc = SCALED(Pc, pixels_wide);
show_click(Pr, Pc, '*');
}
} else {
show_click(Pr, Pc, '*');
}
report = strchr(report, '&') + 2;
now = row++;
}
return now;
}
static int
get_screensize(MENU_ARGS)
{
char *report;
char tmp = 0;
set_tty_raw(TRUE);
set_tty_echo(FALSE);
brc(14, 't'); /* report window's pixel-size */
report = get_reply();
if ((report = skip_csi(report)) == NULL
|| sscanf(report, "4;%d;%d%c", &pixels_high, &pixels_wide, &tmp) != 3
|| tmp != 't'
|| pixels_high <= 0
|| pixels_wide <= 0) {
pixels_high = -1;
pixels_wide = -1;
}
brc(18, 't'); /* report window's char-size */
report = get_reply();
if ((report = skip_csi(report)) == NULL
|| sscanf(report, "8;%d;%d%c", &chars_high, &chars_wide, &tmp) != 3
|| tmp != 't'
|| chars_high <= 0
|| chars_wide <= 0) {
chars_high = 24;
chars_wide = 80;
}
restore_ttymodes();
return MENU_NOHOLD;
}
static void
show_dec_locator_events(MENU_ARGS, int mode, int pixels)
{
int row, now;
pause_replay();
loop:
vt_move(1, 1);
ed(0);
println(the_title);
show_mousehelp();
println("Mouse events will be marked with '*'");
decelr((mode > 0) ? mode : ((mode == 0) ? 2 : -mode), pixels ? 1 : 2);
if (mode < 0)
show_locator_rectangle();
else if (mode == 0)
do_csi("'w"); /* see decefr() */
decsle(1); /* report button-down events */
decsle(3); /* report button-up events */
set_tty_raw(TRUE);
set_tty_echo(FALSE);
now = 4;
for (;;) {
char *report = instr();
if (isQuit(*report)) {
decrqlp(1);
report = instr();
show_locator_report(report, now + 1, pixels);
break;
} else if (isReport(*report)) {
show_mousemodes();
goto loop;
} else if (isClear(*report)) {
goto loop;
}
row = 4;
while (now > row) {
vt_move(now, 1);
vt_el(2);
now--;
}
now = show_locator_report(report, row, pixels);
if (mode == 0) {
decelr(2, pixels ? 1 : 2);
do_csi("'w"); /* see decefr() */
}
}
resume_replay();
decelr(0, 0);
restore_ttymodes();
vt_move(max_lines - 2, 1);
}
/* Normal Mouse Tracking */
static void
show_mouse_tracking(MENU_ARGS, const char *the_mode)
{
unsigned y = 0, x = 0;
unsigned b, xx, yy;
int report_row, report_col;
loop:
vt_move(1, 1);
ed(0);
println(the_title);
show_mousehelp();
println("Mouse events will be marked with the button number.");
sm(the_mode);
set_tty_raw(TRUE);
set_tty_echo(FALSE);
pause_replay();
for (;;) {
char *report = instr();
if (isQuit(*report)) {
break;
} else if (isReport(*report)) {
show_mousemodes();
goto loop;
} else if (isClear(*report)) {
goto loop;
}
ToData(0);
chrprint2(report, report_row, report_col);
while ((report = parse_mouse_M(report, &b, &xx, &yy)) != NULL) {
unsigned adj = 1;
char result[80];
char modifiers[80];
sprintf(result, "code 0x%x (%u,%u)", b, yy, xx);
*modifiers = '\0';
if (b & (unsigned) (~3)) {
if (b & 4)
strcat(modifiers, " shift");
if (b & 8)
strcat(modifiers, " meta");
if (b & 16)
strcat(modifiers, " control");
if (b & 32)
strcat(modifiers, " motion");
if (b & 64)
adj += 3;
b &= 3;
}
if ((b == 3) && (adj == 1)) {
if (xx != x || yy != y) {
ToData(1);
vt_el(2);
show_result("%s release%s", result, modifiers);
show_click(yy, xx, '*');
}
} else {
b += adj;
ToData(1);
vt_el(2);
show_result("%s button %u%s", result, b, modifiers);
show_click(yy, xx, (int) (b + '0'));
}
x = xx;
y = yy;
report += 4;
}
}
resume_replay();
rm(the_mode);
fflush(stdout);
restore_ttymodes();
vt_move(max_lines - 2, 1);
}
static int
test_dec_locator_event(MENU_ARGS)
{
show_dec_locator_events(PASS_ARGS, 2, FALSE);
return MENU_HOLD;
}
static int
test_dec_locator_events(MENU_ARGS)
{
show_dec_locator_events(PASS_ARGS, 1, FALSE);
return MENU_HOLD;
}
static int
test_dec_locator_event_p(MENU_ARGS)
{
show_dec_locator_events(PASS_ARGS, 2, TRUE);
return MENU_HOLD;
}
static int
test_dec_locator_events_p(MENU_ARGS)
{
show_dec_locator_events(PASS_ARGS, 1, TRUE);
return MENU_HOLD;
}
static int
test_dec_locator_rectangle(MENU_ARGS)
{
show_dec_locator_events(PASS_ARGS, -2, FALSE);
return MENU_HOLD;
}
static int
test_dec_locator_unfiltered(MENU_ARGS)
{
show_dec_locator_events(PASS_ARGS, 0, FALSE);
return MENU_HOLD;
}
/* Any-Event Mouse Tracking */
static int
test_mouse_any_event(MENU_ARGS)
{
show_mouse_tracking(PASS_ARGS, "?1003");
return MENU_HOLD;
}
/* Button-Event Mouse Tracking */
static int
test_mouse_button_event(MENU_ARGS)
{
show_mouse_tracking(PASS_ARGS, "?1002");
return MENU_HOLD;
}
/* Mouse Highlight Tracking */
static int
test_mouse_hilite(MENU_ARGS)
{
const int first = 10;
const int last = 20;
unsigned b;
unsigned y = 0, x = 0;
unsigned start_x, end_x;
unsigned start_y, end_y;
unsigned mouse_y, mouse_x;
int report_row, report_col;
loop:
vt_move(1, 1);
ed(0);
println(the_title);
show_mousehelp();
println("Mouse events will be marked with the button number.");
printxx("Highlighting range is [%d..%d)\n", first, last);
show_hilite(first, last);
sm("?1001");
fflush(stdout);
set_tty_raw(TRUE);
set_tty_echo(FALSE);
pause_replay();
for (;;) {
char *report = instr();
if (isQuit(*report)) {
break;
} else if (isReport(*report)) {
show_mousemodes();
goto loop;
} else if (isClear(*report)) {
goto loop;
}
show_hilite(first, last);
ToData(1);
vt_el(2);
chrprint2(report, report_row, report_col);
if (parse_mouse_M(report, &b, &x, &y) != NULL) {
b &= 7;
if (b != 3) {
/* send the xterm the highlighting range (it MUST be done first) */
do_csi("1;%u;%u;%d;%d;T", x, y, 10, 20);
/* now, show the mouse-click */
if (b < 3)
b++;
show_click(y, x, (int) (b + '0'));
}
/* interpret the event */
ToData(2);
vt_el(2);
show_result("tracking: code 0x%x (%d,%d)", b, y, x);
fflush(stdout);
} else if (parse_mouse_T(report,
&start_x, &start_y,
&end_x, &end_y,
&mouse_x, &mouse_y)) {
/* interpret the event */
ToData(2);
vt_el(2);
show_result("done: start(%d,%d), end(%d,%d), mouse(%d,%d)",
start_y, start_x,
end_y, end_x,
mouse_y, mouse_x);
if (start_y != y
|| start_x != x)
show_click(start_y, start_x, 's');
if (end_y != y
|| end_x != x)
show_click(end_y, end_x, 'e');
if (mouse_y != y
|| mouse_x != x)
show_click(mouse_y, mouse_x, 'm');
} else if (parse_mouse_t(report, &end_x, &end_y)) {
/* interpret the event */
ToData(2);
vt_el(2);
show_result("done: end(%d,%d)",
end_y, end_x);
if (end_y != y
|| end_x != x)
show_click(end_y, end_x, 'e');
}
}
resume_replay();
rm("?1001");
fflush(stdout);
restore_ttymodes();
vt_move(max_lines - 2, 1);
return MENU_HOLD;
}
/* Normal Mouse Tracking */
static int
test_mouse_normal(MENU_ARGS)
{
show_mouse_tracking(PASS_ARGS, "?1000");
return MENU_HOLD;
}
/* X10 Mouse Compatibility */
static int
test_X10_mouse(MENU_ARGS)
{
unsigned b, x, y;
int report_row, report_col;
pause_replay();
loop:
vt_move(1, 1);
ed(0);
println(the_title);
show_mousehelp();
println("Mouse events will be marked with the button number.");
sm("?9");
fflush(stdout);
set_tty_raw(TRUE);
set_tty_echo(FALSE);
for (;;) {
char *report = instr();
if (isQuit(*report)) {
break;
} else if (isReport(*report)) {
show_mousemodes();
goto loop;
} else if (isClear(*report)) {
goto loop;
}
ToData(0);
vt_el(2);
chrprint2(report, report_row, report_col);
if (parse_mouse_M(report, &b, &x, &y) != NULL) {
cup((int) y, (int) x);
tprintf("%u", b + 1);
vt_move((int) y, (int) x);
fflush(stdout);
}
}
resume_replay();
rm("?9");
fflush(stdout);
restore_ttymodes();
vt_move(max_lines - 2, 1);
return MENU_HOLD;
}
/*
* DEC locator events are implemented on DECterm, to emulate VT220.
*/
static int
tst_dec_locator_events(MENU_ARGS)
{
static char pixel_screensize[80];
/* *INDENT-OFF* */
static MENU my_menu[] = {
{ "Exit", NULL },
{ "One-Shot", test_dec_locator_event },
{ "Repeated", test_dec_locator_events },
{ "One-Shot (pixels)", test_dec_locator_event_p },
{ "Repeated (pixels)", test_dec_locator_events_p },
{ "Filter Rectangle", test_dec_locator_rectangle },
{ "Filter Rectangle (unfiltered)", test_dec_locator_unfiltered },
{ pixel_screensize, get_screensize },
{ "", NULL }
};
/* *INDENT-ON* */
chars_high = 24;
chars_wide = 80;
pixels_high = -1;
pixels_wide = -1;
do {
vt_clear(2);
__(title(0), println("DEC Locator Events"));
__(title(2), println("Choose test type:"));
if (pixels_high > 0 && pixels_wide > 0) {
sprintf(pixel_screensize,
"XFree86 xterm: screensize %dx%d chars, %dx%d pixels",
chars_high, chars_wide, pixels_high, pixels_wide);
} else {
strcpy(pixel_screensize, "XFree86 xterm: screensize unknown");
}
} while (menu(my_menu));
return MENU_NOHOLD;
}
/*
* Cycle through the different flavors of mouse-coordinates which are
* recognized by xterm.
*/
static int
toggle_ExtCoords(MENU_ARGS)
{
int old_ExtCoords = do_ExtCoords;
char buffer[80];
do_ExtPixels = FALSE;
switch (do_ExtCoords) {
case cUTF:
do_ExtCoords = cSGR;
break;
case cSGR:
do_ExtCoords = cURX;