On Tue, 2006-09-26 at 17:58 +0200, Lubos Lunak wrote:
> Dne úterý 26 září 2006 12:21 Bill Haneman napsal(a):
> > Matthias/All:
> >
> > The whole _NET_WM_USER_TIME thing is a continuing problem for
> > accessibility, as it now stands. In an assistive technology setting,
> > there isn't always an X event that corresponds to the "user action"
> > which results in a new window being posted or focus changing. Since X
> > doesn't allow us to get a meaningful answer to "what's the current
> > timestamp", we have serious problems when trying to interact with
> > windows via non-X-device-based user requests.
> >
> > We really need a solution for this!
>
> Copy&paste from KApplication::updateUserTimestamp():
>
> // get current X timestamp
> Window w = XCreateSimpleWindow( qt_xdisplay(), qt_xrootwin(), 0, 0, 1, 1, 0,
> 0, 0 );
> XSelectInput( qt_xdisplay(), w, PropertyChangeMask );
> unsigned char data[ 1 ];
> XChangeProperty( qt_xdisplay(), w, XA_ATOM, XA_ATOM, 8, PropModeAppend, data,
> 1 );
> XEvent ev;
> XWindowEvent( qt_xdisplay(), w, PropertyChangeMask, &ev );
> time = ev.xproperty.time;
> XDestroyWindow( qt_xdisplay(), w );
>
Here is the gdk equivalent:
guint32
gdk_x11_get_server_time (GdkWindow *window)
{
Display *xdisplay;
Window xwindow;
guchar c = 'a';
XEvent xevent;
Atom timestamp_prop_atom;
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
g_return_val_if_fail (!GDK_WINDOW_DESTROYED (window), 0);
xdisplay = GDK_WINDOW_XDISPLAY (window);
xwindow = GDK_WINDOW_XWINDOW (window);
timestamp_prop_atom =
gdk_x11_get_xatom_by_name_for_display (GDK_WINDOW_DISPLAY (window),
"GDK_TIMESTAMP_PROP");
XChangeProperty (xdisplay, xwindow, timestamp_prop_atom,
timestamp_prop_atom,
8, PropModeReplace, &c, 1);
XIfEvent (xdisplay, &xevent,
timestamp_predicate, GUINT_TO_POINTER(xwindow));
return xevent.xproperty.time;
}
it is even exported, so you can just use it.
_______________________________________________
wm-spec-list mailing list
wm-spec-list@gnome.org
http://mail.gnome.org/mailman/listinfo/wm-spec-list
