dwm/patch/stacker.c

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void
focusstack(const Arg *arg)
{
int i = stackpos(arg);
Client *c, *p;
if (i < 0)
return;
#if ALWAYSFULLSCREEN_PATCH
if (!selmon->sel || selmon->sel->isfullscreen)
return;
#endif // ALWAYSFULLSCREEN_PATCH
for (p = NULL, c = selmon->clients; c && (i || !ISVISIBLE(c));
i -= ISVISIBLE(c) ? 1 : 0, p = c, c = c->next);
focus(c ? c : p);
restack(selmon);
}
void
pushstack(const Arg *arg)
{
int i = stackpos(arg);
Client *sel = selmon->sel, *c, *p;
if (i < 0)
return;
else if (i == 0) {
detach(sel);
attach(sel);
}
else {
for (p = NULL, c = selmon->clients; c; p = c, c = c->next)
if (!(i -= (ISVISIBLE(c) && c != sel)))
break;
c = c ? c : p;
detach(sel);
sel->next = c->next;
c->next = sel;
}
arrange(selmon);
}
int
stackpos(const Arg *arg)
{
int n, i;
Client *c, *l;
if (!selmon->clients)
return -1;
if (arg->i == PREVSEL) {
for (l = selmon->stack; l && (!ISVISIBLE(l) || l == selmon->sel); l = l->snext);
if (!l)
return -1;
for (i = 0, c = selmon->clients; c != l; i += ISVISIBLE(c) ? 1 : 0, c = c->next);
return i;
}
else if (ISINC(arg->i)) {
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if (!selmon->sel)
return -1;
for (i = 0, c = selmon->clients; c != selmon->sel; i += ISVISIBLE(c) ? 1 : 0, c = c->next);
for (n = i; c; n += ISVISIBLE(c) ? 1 : 0, c = c->next);
return MOD(i + GETINC(arg->i), n);
}
else if (arg->i < 0) {
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for (i = 0, c = selmon->clients; c; i += ISVISIBLE(c) ? 1 : 0, c = c->next);
return MAX(i + arg->i, 0);
}
else
return arg->i;
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}