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#include <X11/Xlib-xcb.h>
#include <xcb/res.h>
#ifdef __OpenBSD__
#include <sys/sysctl.h>
#include <kvm.h>
#endif /* __OpenBSD__ */
static int scanner;
static xcb_connection_t *xcon;
int
swallow(Client *p, Client *c)
{
Client *s;
if (c->noswallow > 0 || c->isterminal)
return 0;
if (c->noswallow < 0 && !swallowfloating && c->isfloating)
return 0;
XMapWindow(dpy, c->win);
detach(c);
detachstack(c);
setclientstate(c, WithdrawnState);
XUnmapWindow(dpy, p->win);
p->swallowing = c;
c->mon = p->mon;
Window w = p->win;
p->win = c->win;
c->win = w;
XChangeProperty(dpy, c->win, netatom[NetClientList], XA_WINDOW, 32, PropModeReplace,
(unsigned char *) &(p->win), 1);
updatetitle(p);
s = scanner ? c : p;
#if BAR_EWMHTAGS_PATCH
setfloatinghint(s);
#endif // BAR_EWMHTAGS_PATCH
XMoveResizeWindow(dpy, p->win, s->x, s->y, s->w, s->h);
arrange(p->mon);
configure(p);
updateclientlist();
return 1;
}
void
unswallow(Client *c)
{
c->win = c->swallowing->win;
free(c->swallowing);
c->swallowing = NULL;
XDeleteProperty(dpy, c->win, netatom[NetClientList]);
/* unfullscreen the client */
setfullscreen(c, 0);
updatetitle(c);
arrange(c->mon);
XMapWindow(dpy, c->win);
XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
#if BAR_EWMHTAGS_PATCH
setfloatinghint(c);
#endif // BAR_EWMHTAGS_PATCH
setclientstate(c, NormalState);
focus(NULL);
arrange(c->mon);
}
pid_t
winpid(Window w)
{
pid_t result = 0;
#ifdef __linux__
xcb_res_client_id_spec_t spec = {0};
spec.client = w;
spec.mask = XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID;
xcb_generic_error_t *e = NULL;
xcb_res_query_client_ids_cookie_t c = xcb_res_query_client_ids(xcon, 1, &spec);
xcb_res_query_client_ids_reply_t *r = xcb_res_query_client_ids_reply(xcon, c, &e);
if (!r)
return (pid_t)0;
xcb_res_client_id_value_iterator_t i = xcb_res_query_client_ids_ids_iterator(r);
for (; i.rem; xcb_res_client_id_value_next(&i)) {
spec = i.data->spec;
if (spec.mask & XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID) {
uint32_t *t = xcb_res_client_id_value_value(i.data);
result = *t;
break;
}
}
free(r);
if (result == (pid_t)-1)
result = 0;
#endif /* __linux__ */
#ifdef __OpenBSD__
Atom type;
int format;
unsigned long len, bytes;
unsigned char *prop;
pid_t ret;
if (XGetWindowProperty(dpy, w, XInternAtom(dpy, "_NET_WM_PID", 1), 0, 1, False, AnyPropertyType, &type, &format, &len, &bytes, &prop) != Success || !prop)
return 0;
ret = *(pid_t*)prop;
XFree(prop);
result = ret;
#endif /* __OpenBSD__ */
return result;
}
pid_t
getparentprocess(pid_t p)
{
unsigned int v = 0;
#ifdef __linux__
FILE *f;
char buf[256];
snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
if (!(f = fopen(buf, "r")))
return (pid_t)0;
if (fscanf(f, "%*u %*s %*c %u", (unsigned *)&v) != 1)
v = (pid_t)0;
fclose(f);
#endif /* __linux__ */
#ifdef __OpenBSD__
int n;
kvm_t *kd;
struct kinfo_proc *kp;
kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, NULL);
if (!kd)
return 0;
kp = kvm_getprocs(kd, KERN_PROC_PID, p, sizeof(*kp), &n);
v = kp->p_ppid;
#endif /* __OpenBSD__ */
return (pid_t)v;
}
int
isdescprocess(pid_t p, pid_t c)
{
while (p != c && c != 0)
c = getparentprocess(c);
return (int)c;
}
Client *
termforwin(const Client *w)
{
Client *c;
Monitor *m;
if (!w->pid || w->isterminal)
return NULL;
c = selmon->sel;
if (c && c->isterminal && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid))
return c;
for (m = mons; m; m = m->next) {
for (c = m->clients; c; c = c->next) {
if (c->isterminal && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid))
return c;
}
}
return NULL;
}
Client *
swallowingclient(Window w)
{
Client *c;
Monitor *m;
for (m = mons; m; m = m->next) {
for (c = m->clients; c; c = c->next) {
if (c->swallowing && c->swallowing->win == w)
return c;
}
}
return NULL;
}
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