ref: a70b93a356662355214f5405edda066786f6dd03
dir: /sys/src/cmd/bitsy/keyboard.c/
#include <u.h>
#include <libc.h>
#include <thread.h>
#include <draw.h>
#include <mouse.h>
#include <keyboard.h>
#include <control.h>
#include <scribble.h>
int debug = 0;
typedef struct Win Win;
struct Win {
int n;
int dirty;
char *label;
Control *button;
};
Win *win;
int nwin;
int mwin;
int onwin;
int rows, cols;
int kbdonly;
int scribbleleft;
int winshow;
Channel *kc;
Channel *ec;
Channel *tc;
Rectangle rk, rs, rw;
Font *keyfont, *keyctlfont;
enum{
Back,
Shade,
Light,
Mask,
Ncol
};
enum {
kbdheight = 2 + 5*13,
};
enum {
Keyback = 0xeeee9eff,
Keyshade = 0xaaaa55ff,
Keylight = DWhite,
Keymask = 0x0C0C0C0C,
};
Image *colors[Ncol];
Control *kbd;
Control *scrib;
Control *boxbox;
Controlset *cs;
int ctldeletequits = 1;
int wctl;
int
hidden(void)
{
char buf[128];
int n;
close(wctl);
if ((wctl = open("/dev/wctl", ORDWR)) < 0)
return 0;
n = read(wctl, buf, sizeof buf-1);
if (n <= 0)
sysfatal("wctl read: %r");
buf[n] = 0;
return strstr(buf, "visible") == nil;
}
void
mousemux(void *v)
{
Mouse m;
Channel *c;
int ob;
c = v;
for(ob = 0;;ob = m.buttons){
if(recv(c, &m) < 0)
break;
if ((m.buttons & 0x20) == 0) {
if (ob & 0x20) {
/* hide button just came up */
if (hidden()) {
if (debug) fprint(2, "unhide");
if (fprint(wctl, "unhide") <= 0)
fprint(2, "unhide failed: %r\n");
} else {
if (debug) fprint(2, "hide");
if (fprint(wctl, "hide") <= 0)
fprint(2, "hide failed: %r\n");
}
} else
send(cs->mousec, &m);
}
}
}
void
refreshwin(void)
{
char label[128];
int i, fd, lfd, n, nr, nw, m;
Dir *pd;
if((fd = open("/dev/wsys", OREAD)) < 0)
return;
nw = 0;
/* i'd rather read one at a time but rio won't let me */
while((nr=dirread(fd, &pd)) > 0){
for(i=0; i<nr; i++){
n = atoi(pd[i].name);
sprint(label, "/dev/wsys/%d/label", n);
if((lfd = open(label, OREAD)) < 0)
continue;
m = read(lfd, label, sizeof(label)-1);
close(lfd);
if(m < 0)
continue;
label[m] = '\0';
if(nw < nwin && win[nw].n == n && strcmp(win[nw].label, label)==0){
nw++;
continue;
}
if(nw < nwin){
free(win[nw].label);
win[nw].label = nil;
}
if(nw >= mwin){
mwin += 8;
win = ctlrealloc(win, mwin*sizeof(win[0]));
memset(&win[mwin-8], 0, 8*sizeof(win[0]));
}
win[nw].n = n;
win[nw].label = ctlstrdup(label);
win[nw].dirty = 1;
sprint(label, "%d", nw);
if (win[nw].button == nil){
win[nw].button = createtextbutton(cs, label);
chanprint(cs->ctl, "%q font keyfont", label);
chanprint(cs->ctl, "%q image keyback", label);
chanprint(cs->ctl, "%q pressedtextcolor red", label);
chanprint(cs->ctl, "%q mask transparent", label);
chanprint(cs->ctl, "%q border 1", label);
chanprint(cs->ctl, "%q bordercolor black", label);
chanprint(cs->ctl, "%q align centerleft", label);
chanprint(cs->ctl, "%q size 16 %d 512 %d", label, keyfont->height+2, keyfont->height+2);
controlwire(win[nw].button, "event", ec);
}
if (nw >= nwin){
activate(win[nw].button);
chanprint(cs->ctl, "cols add %q", label);
}
chanprint(cs->ctl, "%q text %q", win[nw].button->name, win[nw].label);
nw++;
}
}
for(i = nw; i < nwin; i++){
free(win[i].label);
win[i].label = nil;
deactivate(win[i].button);
chanprint(cs->ctl, "cols remove %q", win[i].button->name);
}
nwin = nw;
close(fd);
if (rw.max.x)
chanprint(cs->ctl, "cols rect %R\ncols show", rw);
}
void
resizecontrolset(Controlset*)
{
if(getwindow(display, Refnone) < 0)
ctlerror("resize failed: %r");
if (hidden()) {
if (debug) fprint(2, "resizecontrolset: hidden\n");
return;
}
rk = screen->r;
if (winshow){
rw = rk;
rw.min.x = (3*rk.max.x + rk.min.x)/4;
rk.max.x = rw.min.x;
if (debug) fprint(2, "rw: rect %R\n", rw);
chanprint(cs->ctl, "cols rect %R\ncols show", rw);
}
if (kbdonly) {
chanprint(cs->ctl, "keyboard rect %R\nkeyboard show", rk);
} else {
rs = rk;
if (scribbleleft){
rk.min.x = (rk.max.x + 3*rk.min.x)/4;
rs.max.x = rk.min.x;
}else{
rk.max.x = (3*rk.max.x + rk.min.x)/4;
rs.min.x = rk.max.x;
}
chanprint(cs->ctl, "keyboard rect %R\nkeyboard show", rk);
if (debug) fprint(2, "rk: rect %R\nkeyboard show\n", rk);
chanprint(cs->ctl, "scribble rect %R\nscribble show", rs);
if (debug) fprint(2, "rs: rect %R\nscribble show\n", rs);
}
}
void
usage(void)
{
fprint(2, "usage: keyboard\n");
threadexitsall("usage");
}
void
timerproc(void*v)
{
Channel *c;
c = v;
for(;;){
sleep(5000);
sendul(c, 1);
}
}
void
watchproc(void*)
{
for(;;){}
}
void
threadmain(int argc, char *argv[])
{
int i, n, kbdfd;
char str[UTFmax+1];
Rune r;
Mousectl *mousectl;
Channel *mtok;
char *e, buf[128], *args[8];
int fd;
ARGBEGIN{
case 'w':
winshow++;
break;
case 'l':
scribbleleft++;
break;
case 'n':
kbdonly++;
break;
case 'd':
ScribbleDebug++;
debug++;
break;
default:
usage();
}ARGEND
if(argc != 0)
usage();
kbdfd = open("/dev/kbdin", OWRITE);
if (kbdfd < 0 && (kbdfd = open("#r/kbdin", OWRITE)) < 0) {
if (debug) fprint(2, "open %s: %r\n", "#r/kbdin");
kbdfd = 1;
}
initdraw(0, 0, "keyboard");
mousectl = initmouse(nil, screen);
wctl = open("/dev/wctl", ORDWR);
if (wctl < 0) {
fprint(2, "open %s: %r\n", "/dev/wctl");
wctl = 2; /* for debugging */
}
mtok = chancreate(sizeof(Mouse), 0);
initcontrols();
cs = newcontrolset(screen, nil, mtok, mousectl->resizec);
threadcreate(mousemux, mousectl->c, 4096);
kc = chancreate(sizeof(char*), 0);
tc = chancreate(sizeof(int), 1);
ec = chancreate(sizeof(char*), 1);
colors[Back] = allocimage(display, Rect(0,0,1,1), screen->chan, 1, Keyback);
namectlimage(colors[Back], "keyback");
colors[Light] = allocimage(display, Rect(0,0,1,1), screen->chan, 1, Keylight);
namectlimage(colors[Light], "keylight");
colors[Shade] = allocimage(display, Rect(0,0,1,1), screen->chan, 1, Keyshade);
namectlimage(colors[Shade], "keyshade");
colors[Mask] = allocimage(display, Rect(0,0,1,1), RGBA32, 1, Keymask);
namectlimage(colors[Shade], "keymask");
keyfont = openfont(display, "/lib/font/bit/lucidasans/boldlatin1.6.font");
namectlfont(keyfont, "keyfont");
keyctlfont = openfont(display, "/lib/font/bit/lucidasans/unicode.6.font");
namectlfont(keyctlfont, "keyctlfont");
kbd = createkeyboard(cs, "keyboard");
chanprint(cs->ctl, "keyboard font keyfont keyctlfont");
chanprint(cs->ctl, "keyboard image keyback");
chanprint(cs->ctl, "keyboard light keylight");
chanprint(cs->ctl, "keyboard mask keymask");
chanprint(cs->ctl, "keyboard border 1");
chanprint(cs->ctl, "keyboard size %d %d %d %d", 246, 2 + 5 * (keyfont->height + 1), 512, 256);
controlwire(kbd, "event", kc);
if (kbdonly == 0){
scrib = createscribble(cs, "scribble");
if (scrib == nil)
sysfatal("createscribble");
chanprint(cs->ctl, "scribble font keyfont");
chanprint(cs->ctl, "scribble image keyback");
chanprint(cs->ctl, "scribble border 1");
controlwire(scrib, "event", kc);
}
if (winshow){
boxbox = createboxbox(cs, "cols");
chanprint(cs->ctl, "cols border 2");
chanprint(cs->ctl, "cols bordercolor keyback");
}
resizecontrolset(nil);
activate(kbd);
if (kbdonly == 0)
activate(scrib);
if (winshow){
refreshwin();
proccreate(timerproc, tc, 2048);
}
for(;;){
Alt a[] = {
{ kc, &e, CHANRCV },
{ ec, &e, CHANRCV },
{ tc, &n, CHANRCV },
{ nil, nil, CHANEND }
};
switch(alt(a)){
case 0: /* Keyboard */
n = tokenize(e, args, nelem(args));
if(n == 3)
if(strcmp(args[0], "keyboard:")==0 || strcmp(args[0], "scribble:")==0)
if(strcmp(args[1], "value") == 0){
n = strtol(args[2], 0, 0);
if(n <= Runemax){
r = n;
i = runetochar(str, &r);
write(kbdfd, str, i);
}
}
break;
case 1: /* Button event */
n = tokenize(e, args, nelem(args));
if (n != 3 || strcmp(args[1], "value"))
sysfatal("event string");
i = atoi(args[0]);
if (i < 0 || i >= nwin)
sysfatal("win out of range: %d of %d", i, nwin);
n = atoi(args[2]);
if (n){
sprint(buf, "/dev/wsys/%d/wctl", win[i].n);
if((fd = open(buf, OWRITE)) >= 0){
while (write(fd, "top\n", 4) < 0) {
/* wait until mouse comes up */
rerrstr(buf, sizeof buf);
if (strncmp(buf, "action disallowed when mouse active", sizeof buf)){
fprint(2, "write top: %s\n", buf);
break;
}
sleep(100);
}
if (write(fd, "current\n", 8) < 0)
fprint(2, "write current: %r\n");
close(fd);
}
chanprint(cs->ctl, "%q value 0", win[i].button->name);
}
break;
case 2:
refreshwin();
break;
}
}
}