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/* -- xkb_bell.c -- */
#include "x11vnc.h"
#include "xwrappers.h"
#include "connections.h"
/*
* Bell event handling. Requires XKEYBOARD extension.
*/
int xkb_base_event_type = 0;
void initialize_xkb(void);
void initialize_watch_bell(void);
void check_bell_event(void);
#if LIBVNCSERVER_HAVE_XKEYBOARD
/*
* check for XKEYBOARD, set up xkb_base_event_type
*/
void initialize_xkb(void) {
int ir, reason;
int op, ev, er, maj, min;
if (xkbcompat) {
xkb_present = 0;
} else if (! XkbQueryExtension(dpy, &op, &ev, &er, &maj, &min)) {
if (! quiet) {
rfbLog("warning: XKEYBOARD extension not present.\n");
}
xkb_present = 0;
} else {
xkb_present = 1;
}
if (! xkb_present) {
return;
}
if (! XkbOpenDisplay(DisplayString(dpy), &xkb_base_event_type, &ir,
NULL, NULL, &reason) ) {
if (! quiet) {
rfbLog("warning: disabling XKEYBOARD. XkbOpenDisplay"
" failed.\n");
}
xkb_base_event_type = 0;
xkb_present = 0;
}
}
void initialize_watch_bell(void) {
if (! xkb_present) {
if (! quiet) {
rfbLog("warning: disabling bell. XKEYBOARD ext. "
"not present.\n");
}
watch_bell = 0;
sound_bell = 0;
return;
}
XkbSelectEvents(dpy, XkbUseCoreKbd, XkbBellNotifyMask, 0);
if (! watch_bell) {
return;
}
if (! XkbSelectEvents(dpy, XkbUseCoreKbd, XkbBellNotifyMask,
XkbBellNotifyMask) ) {
if (! quiet) {
rfbLog("warning: disabling bell. XkbSelectEvents"
" failed.\n");
}
watch_bell = 0;
sound_bell = 0;
}
}
/*
* We call this periodically to process any bell events that have
* taken place.
*/
void check_bell_event(void) {
XEvent xev;
XkbAnyEvent *xkb_ev;
int got_bell = 0;
if (! xkb_base_event_type) {
return;
}
/* caller does X_LOCK */
if (! XCheckTypedEvent(dpy, xkb_base_event_type, &xev)) {
return;
}
if (! watch_bell) {
/* we return here to avoid xkb events piling up */
return;
}
xkb_ev = (XkbAnyEvent *) &xev;
if (xkb_ev->xkb_type == XkbBellNotify) {
got_bell = 1;
}
if (got_bell && sound_bell) {
if (! all_clients_initialized()) {
rfbLog("check_bell_event: not sending bell: "
"uninitialized clients\n");
} else {
if (screen && client_count) {
rfbSendBell(screen);
}
}
}
}
#else
void initialize_watch_bell(void) {
watch_bell = 0;
sound_bell = 0;
}
void check_bell_event(void) {}
#endif
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