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#include <X11/Xatom.h>
#include <gdk/gdkx.h>
#include <gdk/gdk.h>
#include <string.h>
#include <glib.h>
#include <glib-object.h>
#include "wm-common.h"
/* Our WM Window */
static Window wm_window = None;
static char *
wm_common_get_window_manager_property (Atom atom)
{
Atom utf8_string, type;
GdkDisplay *display;
int result;
char *retval;
int format;
gulong nitems;
gulong bytes_after;
gchar *val;
if (wm_window == None)
return NULL;
utf8_string = gdk_x11_get_xatom_by_name ("UTF8_STRING");
display = gdk_display_get_default ();
gdk_x11_display_error_trap_push (display);
val = NULL;
result = XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
wm_window,
atom,
0, G_MAXLONG,
False, utf8_string,
&type, &format, &nitems,
&bytes_after, (guchar **) &val);
if (gdk_x11_display_error_trap_pop (display) || result != Success ||
type != utf8_string || format != 8 || nitems == 0 ||
!g_utf8_validate (val, nitems, NULL))
{
retval = NULL;
}
else
{
retval = g_strndup (val, nitems);
}
if (val)
XFree (val);
return retval;
}
char*
wm_common_get_current_window_manager (void)
{
Atom atom = gdk_x11_get_xatom_by_name ("_NET_WM_NAME");
char *result;
result = wm_common_get_window_manager_property (atom);
if (result)
return result;
else
return g_strdup (WM_COMMON_UNKNOWN);
}
static void
update_wm_window (void)
{
GdkDisplay *display;
Window *xwindow;
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
display = gdk_display_get_default ();
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_ROOT_WINDOW (),
gdk_x11_get_xatom_by_name ("_NET_SUPPORTING_WM_CHECK"),
0, G_MAXLONG, False, XA_WINDOW, &type, &format,
&nitems, &bytes_after, (guchar **) &xwindow);
if (type != XA_WINDOW)
{
wm_window = None;
return;
}
gdk_x11_display_error_trap_push (display);
XSelectInput (GDK_DISPLAY_XDISPLAY (display), *xwindow, StructureNotifyMask | PropertyChangeMask);
XSync (GDK_DISPLAY_XDISPLAY (display), False);
if (gdk_x11_display_error_trap_pop (display))
{
XFree (xwindow);
wm_window = None;
return;
}
wm_window = *xwindow;
XFree (xwindow);
}
void
wm_common_update_window ()
{
update_wm_window();
}
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