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/* $Id$ */
/***
This file is part of PulseAudio.
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xlib.h>
#include <X11/XKBlib.h>
#include <pulse/xmalloc.h>
#include <pulsecore/iochannel.h>
#include <pulsecore/sink.h>
#include <pulsecore/core-scache.h>
#include <pulsecore/modargs.h>
#include <pulsecore/namereg.h>
#include <pulsecore/log.h>
#include <pulsecore/x11wrap.h>
#include "module-x11-bell-symdef.h"
PA_MODULE_AUTHOR("Lennart Poettering")
PA_MODULE_DESCRIPTION("X11 Bell interceptor")
PA_MODULE_VERSION(PACKAGE_VERSION)
PA_MODULE_USAGE("sink=<sink to connect to> sample=<sample name> display=<X11 display>")
struct userdata {
pa_core *core;
int xkb_event_base;
char *sink_name;
char *scache_item;
pa_x11_wrapper *x11_wrapper;
pa_x11_client *x11_client;
};
static const char* const valid_modargs[] = {
"sink",
"sample",
"display",
NULL
};
static int ring_bell(struct userdata *u, int percent) {
pa_sink *s;
assert(u);
if (!(s = pa_namereg_get(u->core, u->sink_name, PA_NAMEREG_SINK, 1))) {
pa_log("Invalid sink: %s", u->sink_name);
return -1;
}
pa_scache_play_item(u->core, u->scache_item, s, (percent*PA_VOLUME_NORM)/100);
return 0;
}
static int x11_event_callback(pa_x11_wrapper *w, XEvent *e, void *userdata) {
XkbBellNotifyEvent *bne;
struct userdata *u = userdata;
assert(w && e && u && u->x11_wrapper == w);
if (((XkbEvent*) e)->any.xkb_type != XkbBellNotify)
return 0;
bne = (XkbBellNotifyEvent*) e;
if (ring_bell(u, bne->percent) < 0) {
pa_log_info("Ringing bell failed, reverting to X11 device bell.");
XkbForceDeviceBell(pa_x11_wrapper_get_display(w), bne->device, bne->bell_class, bne->bell_id, bne->percent);
}
return 1;
}
int pa__init(pa_core *c, pa_module*m) {
struct userdata *u = NULL;
pa_modargs *ma = NULL;
int major, minor;
unsigned int auto_ctrls, auto_values;
assert(c && m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("failed to parse module arguments");
goto fail;
}
m->userdata = u = pa_xmalloc(sizeof(struct userdata));
u->core = c;
u->scache_item = pa_xstrdup(pa_modargs_get_value(ma, "sample", "x11-bell"));
u->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL));
u->x11_client = NULL;
if (!(u->x11_wrapper = pa_x11_wrapper_get(c, pa_modargs_get_value(ma, "display", NULL))))
goto fail;
major = XkbMajorVersion;
minor = XkbMinorVersion;
if (!XkbLibraryVersion(&major, &minor)) {
pa_log("XkbLibraryVersion() failed");
goto fail;
}
major = XkbMajorVersion;
minor = XkbMinorVersion;
if (!XkbQueryExtension(pa_x11_wrapper_get_display(u->x11_wrapper), NULL, &u->xkb_event_base, NULL, &major, &minor)) {
pa_log("XkbQueryExtension() failed");
goto fail;
}
XkbSelectEvents(pa_x11_wrapper_get_display(u->x11_wrapper), XkbUseCoreKbd, XkbBellNotifyMask, XkbBellNotifyMask);
auto_ctrls = auto_values = XkbAudibleBellMask;
XkbSetAutoResetControls(pa_x11_wrapper_get_display(u->x11_wrapper), XkbAudibleBellMask, &auto_ctrls, &auto_values);
XkbChangeEnabledControls(pa_x11_wrapper_get_display(u->x11_wrapper), XkbUseCoreKbd, XkbAudibleBellMask, 0);
u->x11_client = pa_x11_client_new(u->x11_wrapper, x11_event_callback, u);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
if (m->userdata)
pa__done(c, m);
return -1;
}
void pa__done(pa_core *c, pa_module*m) {
struct userdata *u = m->userdata;
assert(c && m && u);
pa_xfree(u->scache_item);
pa_xfree(u->sink_name);
if (u->x11_client)
pa_x11_client_free(u->x11_client);
if (u->x11_wrapper)
pa_x11_wrapper_unref(u->x11_wrapper);
pa_xfree(u);
}
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