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/* aewm - Copyright 1998-2007 Decklin Foster <decklin@red-bean.com>.
* This program is free software; please see LICENSE for details. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include "common.h"
#include "atom.h"
#define UMOD(x, y) ((((long)(x) % (long)(y)) + (y)) % (y))
Display *dpy;
Window root;
Atom net_cur_desk, net_num_desks;
static unsigned long parse_desk(char *spec);
int main(int argc, char **argv)
{
unsigned long desk;
int i;
if (argc < 2) {
fprintf(stderr, "usage: aedesk [+-]<integer>|-n <integer>\n");
exit(2);
}
dpy = XOpenDisplay(NULL);
root = DefaultRootWindow(dpy);
net_cur_desk = XInternAtom(dpy, "_NET_CURRENT_DESKTOP", False);
net_num_desks = XInternAtom(dpy, "_NET_NUMBER_OF_DESKTOPS", False);
if (!dpy) {
fprintf(stderr, "aedesk: can't open display %s\n", getenv("DISPLAY"));
exit(1);
}
for (i = 1; i < argc; i++) {
if ARG("setn", "n", 1) {
desk = atol(argv[++i]);
set_atoms(root, net_num_desks, XA_CARDINAL, &desk, 1);
} else {
desk = parse_desk(argv[i]);
send_xmessage(root, net_cur_desk, desk, SubstructureNotifyMask);
}
}
XCloseDisplay(dpy);
return 0;
}
unsigned long parse_desk(char *spec)
{
unsigned long ndesks, cur_desk;
if (strchr("+-", spec[0])) {
if (get_atoms(root, net_cur_desk, XA_CARDINAL, 0, &cur_desk, 1, NULL)
&& get_atoms(root, net_num_desks, XA_CARDINAL, 0, &ndesks, 1,
NULL)) {
return UMOD(cur_desk + atol(spec), ndesks);
} else {
return 0;
}
} else {
return atol(spec);
}
}
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