void selection_clear(XSelectionClearEvent ev)
{
/* Is it _NET_SYSTEM_TRAY selection? */
if (ev.selection == tray_data.xa_tray_selection) {
/* Is it us who has lost the selection */
if (ev.window == tray_data.tray) {
LOG_INFO(("another tray detected; deactivating\n"));
tray_data.is_active = False;
tray_data.old_selection_owner = XGetSelectionOwner(tray_data.dpy, tray_data.xa_tray_selection);
if (!x11_ok()) {
LOG_INFO(("could not find proper new tray; reactivating\n"));
tray_acquire_selection();
};
LOG_TRACE(("new selection owner is 0x%x\n", tray_data.old_selection_owner));
XSelectInput(tray_data.dpy, tray_data.old_selection_owner, StructureNotifyMask);
return;
} else if (!tray_data.is_active) {
/* Someone else has lost selection and tray is not active --- take over the selection */
LOG_INFO(("another tray exited; reactivating\n"));
tray_acquire_selection();
} else {
/* Just in case */
LOG_TRACE(("WEIRD: tray is active and someone else has lost tray selection\n"));
}
}
}
void destroy_notify(XDestroyWindowEvent ev)
{
if (!tray_data.is_active && ev.window == tray_data.old_selection_owner) {
/* Old tray selection owner was destroyed. Take over selection ownership. */
tray_acquire_selection();
} else if (ev.window != tray_data.tray) {
/* Try to remove icon from the tray */
remove_icon(ev.window);
#ifndef NO_NATIVE_KDE
} else if (kde_tray_is_old_icon(ev.window)) {
/* Since X Server may reuse window ids, remove ev.window
* from the list of old KDE icons */
kde_tray_old_icons_remove(ev.window);
#endif
}
}
/* main() for usual operation */
static void tray_main(int argc, char **argv, Window window)
{
X11_enable_event_filter(TRUE);
/* Interpret those settings that need an open display */
//interpret_settings();
#ifdef DEBUG
ewmh_list_supported_atoms(tray_data.dpy);
#endif
/* Create and show tray window */
tray_create_window(argc, argv, window);
tray_acquire_selection();
//tray_show_window();
#ifndef NO_NATIVE_KDE
kde_tray_init(tray_data.dpy);
#endif
xembed_init();
#ifndef NO_NATIVE_KDE
kde_icons_update();
#endif
}
/* main() for usual operation */
int tray_main(int argc, char **argv)
{
XEvent ev;
/* Interpret those settings that need an open display */
interpret_settings();
#ifdef DEBUG
ewmh_list_supported_atoms(tray_data.dpy);
#endif
/* Create and show tray window */
tray_create_window(argc, argv);
tray_acquire_selection();
tray_show_window();
#ifndef NO_NATIVE_KDE
kde_tray_init(tray_data.dpy);
#endif
xembed_init();
#ifndef NO_NATIVE_KDE
kde_icons_update();
#endif
/* Main event loop */
while ("my guitar gently wheeps") {
/* This is ugly and extra dependency. But who cares?
* Rationale: we want to block unless absolutely needed.
* This way we ensure that stalonetray does not show up
* in powertop (i.e. does not eat unnecessary power and
* CPU cycles)
* Drawback: handling of signals is very limited. XNextEvent()
* does not if signal occurs. This means that graceful
* exit on e.g. Ctrl-C cannot be implemented without hacks. */
while (XPending(tray_data.dpy) || tray_data.scrollbars_data.scrollbar_down == -1) {
XNextEvent(tray_data.dpy, &ev);
xembed_handle_event(ev);
scrollbars_handle_event(ev);
switch (ev.type) {
case VisibilityNotify:
LOG_TRACE(("VisibilityNotify (0x%x, state=%d)\n", ev.xvisibility.window, ev.xvisibility.state));
visibility_notify(ev.xvisibility);
break;
case Expose:
LOG_TRACE(("Expose (0x%x)\n", ev.xexpose.window));
expose(ev.xexpose);
break;
case PropertyNotify:
LOG_TRACE(("PropertyNotify(0x%x)\n", ev.xproperty.window));
property_notify(ev.xproperty);
break;
case DestroyNotify:
LOG_TRACE(("DestroyNotify(0x%x)\n", ev.xdestroywindow.window));
destroy_notify(ev.xdestroywindow);
break;
case ClientMessage:
LOG_TRACE(("ClientMessage(from 0x%x?)\n", ev.xclient.window));
client_message(ev.xclient);
break;
case ConfigureNotify:
LOG_TRACE(("ConfigureNotify(0x%x)\n", ev.xconfigure.window));
configure_notify(ev.xconfigure);
break;
case MapNotify:
LOG_TRACE(("MapNotify(0x%x)\n", ev.xmap.window));
map_notify(ev.xmap);
break;
case ReparentNotify:
LOG_TRACE(("ReparentNotify(0x%x to 0x%x)\n", ev.xreparent.window, ev.xreparent.parent));
reparent_notify(ev.xreparent);
break;
case SelectionClear:
LOG_TRACE(("SelectionClear (0x%x has lost selection)\n", ev.xselectionclear.window));
selection_clear(ev.xselectionclear);
break;
case SelectionNotify:
LOG_TRACE(("SelectionNotify\n"));
break;
case SelectionRequest:
LOG_TRACE(("SelectionRequest (from 0x%x to 0x%x)\n", ev.xselectionrequest.requestor, ev.xselectionrequest.owner));
break;
case UnmapNotify:
LOG_TRACE(("UnmapNotify(0x%x)\n", ev.xunmap.window));
unmap_notify(ev.xunmap);
break;
default:
#if defined(DEBUG) && defined(TRACE_EVENTS)
LOG_TRACE(("Unhandled event: %s, serial: %d, window: 0x%x\n", x11_event_names[ev.type], ev.xany.serial, ev.xany.window));
#endif
break;
}
if (tray_data.terminated) goto bailout;
/* Perform all periodic tasks but for scrollbars */
perform_periodic_tasks(PT_MASK_ALL & (~PT_MASK_SB));
}
perform_periodic_tasks(PT_MASK_ALL);
my_usleep(500000L);
}
bailout:
LOG_TRACE(("Clean exit\n"));
return 0;
}