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#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xresource.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static Window root, parentwin, win;
static int screen;
static Display *display;
static int mw, mh;
static unsigned int lines = 0;
static XIC xic;
// config
static int topbar = 1;
#define MAX(A, B) ((A) > (B) ? (A) : (B))
static void
die(const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
fputc(' ', stderr);
perror(NULL);
} else {
fputc('\n', stderr);
}
exit(1);
}
static void
setup()
{
int x, y;
XSetWindowAttributes swa;
XWindowAttributes wa;
XIM xim;
XClassHint ch = {"cmdtree", "cmdtree"};
if (!XGetWindowAttributes(display, parentwin, &wa))
die("could not get embedding window attributes: 0x%lx",
parentwin);
x = 0;
y = topbar ? 0 : wa.height - mh;
mw = wa.width;
lines = MAX(lines, 0);
/* mh = (lines + 1) * bh; */
mh = 100;
swa.override_redirect = True;
/* swa.background_pixel = scheme[SchemeNorm][ColBg].pixel; */
swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
win = XCreateWindow(display, parentwin, x, y, mw, mh, 0,
CopyFromParent, CopyFromParent, CopyFromParent,
CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);
XSetClassHint(display, win, &ch);
// what do?
/* XMapRaised(display, win); */
xim = XOpenIM(display, NULL, NULL, NULL);
xic = XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
XNClientWindow, win, XNFocusWindow, win, NULL);
XSelectInput(display, win, ExposureMask | KeyPressMask);
XMapWindow(display, win);
XSetInputFocus(display, win, RevertToParent, CurrentTime);
// XXX embed
/* if (embed) { */
/* XSelectInput(dpy, parentwin, FocusChangeMask); */
/* if (XQueryTree(dpy, parentwin, &dw, &w, &dws, &du) && dws) { */
/* for (i = 0; i < du && dws[i] != win; ++i) */
/* XSelectInput(dpy, dws[i], FocusChangeMask); */
/* XFree(dws); */
/* } */
/* grabfocus(); */
/* } */
/* drw_resize(drw, mw, mh); */
/* drawmenu(); */
}
static void
run() {
XEvent e;
int done = 0;
char buf[32];
KeySym ksym = NoSymbol;
Status status;
static const char *msg = "cmdtree is a tree of commands";
while (!done) {
XNextEvent(display, &e);
if (e.type == Expose) {
XFillRectangle(display, win, DefaultGC(display, screen),
20, 20, 10, 10);
XDrawString(display, win, DefaultGC(display, screen), 10,
50, msg, strlen(msg));
}
if (e.type == KeyPress) {
XmbLookupString(xic, (XKeyEvent*)&e, buf,
sizeof buf, &ksym, &status);
if (ksym == XK_q) done = 1;
if (ksym == XK_Escape) done = 1;
}
}
}
int main(void) {
display = XOpenDisplay(NULL);
if (display == NULL) {
fprintf(stderr, "Cannot open display\n");
exit(1);
}
screen = DefaultScreen(display);
root = RootWindow(display, screen);
// XXX embed
/* if (!embed || !(parentwin = strtol(embed, NULL, 0))) */
/* parentwin = root; */
parentwin = root;
setup();
run();
XCloseDisplay(display);
return 0;
}
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