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-rw-r--r--src/modules/module-x11-bell.c173
1 files changed, 173 insertions, 0 deletions
diff --git a/src/modules/module-x11-bell.c b/src/modules/module-x11-bell.c
new file mode 100644
index 00000000..d722b732
--- /dev/null
+++ b/src/modules/module-x11-bell.c
@@ -0,0 +1,173 @@
+/* $Id$ */
+
+/***
+ This file is part of polypaudio.
+
+ polypaudio 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.
+
+ polypaudio 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 polypaudio; 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 <polypcore/iochannel.h>
+#include <polypcore/sink.h>
+#include <polypcore/scache.h>
+#include <polypcore/modargs.h>
+#include <polypcore/xmalloc.h>
+#include <polypcore/namereg.h>
+#include <polypcore/log.h>
+#include <polypcore/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;
+ Display *display;
+
+ 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;
+ pa_cvolume cv;
+ assert(u);
+
+ if (!(s = pa_namereg_get(u->core, u->sink_name, PA_NAMEREG_SINK, 1))) {
+ pa_log(__FILE__": Invalid sink: %s\n", u->sink_name);
+ return -1;
+ }
+
+ pa_scache_play_item(u->core, u->scache_item, s, pa_cvolume_set(&cv, PA_CHANNELS_MAX, 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(__FILE__": Ringing bell failed, reverting to X11 device bell.\n");
+ 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(__FILE__": failed to parse module arguments\n");
+ 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;
+
+ u->display = pa_x11_wrapper_get_display(u->x11_wrapper);
+
+ major = XkbMajorVersion;
+ minor = XkbMinorVersion;
+
+ if (!XkbLibraryVersion(&major, &minor)) {
+ pa_log(__FILE__": XkbLibraryVersion() failed\n");
+ goto fail;
+ }
+
+ major = XkbMajorVersion;
+ minor = XkbMinorVersion;
+
+
+ if (!XkbQueryExtension(u->display, NULL, &u->xkb_event_base, NULL, &major, &minor)) {
+ pa_log(__FILE__": XkbQueryExtension() failed\n");
+ goto fail;
+ }
+
+ XkbSelectEvents(u->display, XkbUseCoreKbd, XkbBellNotifyMask, XkbBellNotifyMask);
+ auto_ctrls = auto_values = XkbAudibleBellMask;
+ XkbSetAutoResetControls(u->display, XkbAudibleBellMask, &auto_ctrls, &auto_values);
+ XkbChangeEnabledControls(u->display, 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);
+}