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