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/* $XConsortium: ClientWin.c,v 1.3 89/12/10 10:26:35 rws Exp $ */
/*
* Copyright 1989 by the Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of M.I.T. not be used in advertising
* or publicity pertaining to distribution of the software without specific,
* written prior permission. M.I.T. makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
*/
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include "ClientWin.h"
static Window TryChildren(Display *,Window,Atom);
/* Find a window with WM_STATE, else return win itself, as per ICCCM */
Window XmuClientWindow (Display *dpy,Window win)
{
Atom WM_STATE;
Atom type = None;
int format;
unsigned long nitems, after;
unsigned char *data;
Window inf;
WM_STATE = XInternAtom(dpy, "WM_STATE", True);
if (!WM_STATE)
return win;
XGetWindowProperty(dpy, win, WM_STATE, 0, 0, False, AnyPropertyType,
&type, &format, &nitems, &after, &data);
if (type)
return win;
inf = TryChildren(dpy, win, WM_STATE);
if (!inf)
inf = win;
return inf;
}
static
Window TryChildren (Display *dpy, Window win, Atom WM_STATE)
{
Window root, parent;
Window *children;
unsigned int nchildren;
unsigned int i;
Atom type = None;
int format;
unsigned long nitems, after;
unsigned char *data;
Window inf = 0;
if (!XQueryTree(dpy, win, &root, &parent, &children, &nchildren))
return 0;
for (i = 0; !inf && (i < nchildren); i++) {
XGetWindowProperty(dpy, children[i], WM_STATE, 0, 0, False,
AnyPropertyType, &type, &format, &nitems,
&after, &data);
if (type)
inf = children[i];
}
for (i = 0; !inf && (i < nchildren); i++)
inf = TryChildren(dpy, children[i], WM_STATE);
if (children) XFree((char *)children);
return inf;
}
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