/**
* Callback function for the mixer element which is
* set in alsaset().
*
* @param e mixer element
* @param mask event mask
* @return 0 on success otherwise a negative error code
*/
static int
alsa_cb(snd_mixer_elem_t *e, unsigned int mask)
{
/* Test MASK_REMOVE first, according to Alsa documentation */
if (mask == SND_CTL_EVENT_MASK_REMOVE) {
return 0;
}
/* Then check if mixer value changed */
if (mask & SND_CTL_EVENT_MASK_VALUE) {
int muted;
get_current_levels();
muted = ismuted();
on_volume_has_changed();
if (enable_noti && external_noti) {
int vol = getvol();
if (muted)
do_notify_volume(vol, FALSE);
else
do_notify_volume(vol, TRUE);
}
}
return 0;
}
/**
* Reinitializes alsa and updates the various states.
*/
void
do_alsa_reinit(void)
{
alsa_init();
update_status_icons();
update_vol_text();
on_volume_has_changed();
}
/**
* This function is called before gdk/gtk can respond
* to any(!) window event and handles pressed hotkeys.
*
* @param gdk_xevent the native event to filter
* @param event the GDK event to which the X event will be translated
* @param data user data set when the filter was installed
* @return a GdkFilterReturn value, should be GDK_FILTER_CONTINUE only
*/
static GdkFilterReturn
key_filter(GdkXEvent *gdk_xevent,
G_GNUC_UNUSED GdkEvent *event,
G_GNUC_UNUSED gpointer data)
{
int type;
guint key, state;
XKeyEvent *xevent;
//gboolean bResult;
xevent = gdk_xevent;
type = xevent->type;
if (type == KeyPress) {
key = ((XKeyEvent *) xevent)->keycode;
state = ((XKeyEvent *) xevent)->state;
if ((int) key == volMuteKey && checkModKey(state, volMuteMods)) {
setmute(enable_noti && hotkey_noti);
on_volume_has_changed();
return GDK_FILTER_CONTINUE;
} else {
int cv = getvol();
if ((int) key == volUpKey && checkModKey(state, volUpMods)) {
setvol(cv + volStep, 1, enable_noti && hotkey_noti);
} else if ((int) key == volDownKey && checkModKey(state, volDownMods)) {
setvol(cv - volStep, -1, enable_noti && hotkey_noti);
}
// just ignore unknown hotkeys
if (ismuted() == 0)
setmute(enable_noti && hotkey_noti);
on_volume_has_changed();
// this will set the slider value
get_current_levels();
}
}
return GDK_FILTER_CONTINUE;
}
/**
* Handles button-release-event' signal on the tray_icon, currently
* only used for middle-click.
*
* @param status_icon the object which received the signal
* @param event the GdkEventButton which triggered this signal
* @param user_data user data set when the signal handler was
* connected
*/
void
tray_icon_button(G_GNUC_UNUSED GtkStatusIcon *status_icon,
GdkEventButton *event, G_GNUC_UNUSED gpointer user_data)
{
gint action;
if (event->button != 2)
return;
action = prefs_get_integer("MiddleClickAction", 0);
switch (action) {
case 0: // mute/unmute
setmute(mouse_noti);
on_volume_has_changed();
break;
case 1:
do_prefs();
break;
case 2:
on_mixer();
break;
case 3: {
gchar *cmd;
cmd = prefs_get_string("CustomCommand", NULL);
if (cmd) {
run_command(cmd);
g_free(cmd);
} else
report_error(_("You have not specified a custom command to run, "
"please specify one in preferences."));
break;
}
default: {
} // nothing
}
}
/**
* Updates all status icons for the different volume states like
* muted, low, medium, high as well as the volume meter. This
* is triggered either by apply_prefs() in the preferences subsystem,
* do_alsa_reinit() or tray_icon_resized().
*/
void
update_status_icons(void)
{
int i, icon_width;
GdkPixbuf *old_icons[N_VOLUME_ICONS];
int size = tray_icon_size();
for (i = 0; i < N_VOLUME_ICONS; i++)
old_icons[i] = status_icons[i];
/* Handle icons depending on the theme */
if (prefs_get_boolean("SystemTheme", FALSE)) {
status_icons[VOLUME_MUTED] = get_stock_pixbuf("audio-volume-muted",
size);
status_icons[VOLUME_OFF] = get_stock_pixbuf("audio-volume-off", size);
status_icons[VOLUME_LOW] = get_stock_pixbuf("audio-volume-low", size);
status_icons[VOLUME_MEDIUM] = get_stock_pixbuf("audio-volume-medium",
size);
status_icons[VOLUME_HIGH] = get_stock_pixbuf("audio-volume-high",
size);
/* 'audio-volume-off' is not available in every icon set. More info at:
* http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html
*/
if (status_icons[VOLUME_OFF] == NULL)
status_icons[VOLUME_OFF] = get_stock_pixbuf("audio-volume-low",
size);
} else {
status_icons[VOLUME_MUTED] = create_pixbuf("pnmixer-muted.png");
status_icons[VOLUME_OFF] = create_pixbuf("pnmixer-off.png");
status_icons[VOLUME_LOW] = create_pixbuf("pnmixer-low.png");
status_icons[VOLUME_MEDIUM] = create_pixbuf("pnmixer-medium.png");
status_icons[VOLUME_HIGH] = create_pixbuf("pnmixer-high.png");
}
/* Handle volume meter */
icon_width = gdk_pixbuf_get_height(status_icons[0]);
vol_div_factor = ((gdk_pixbuf_get_height(status_icons[0]) - 10) / 100.0);
vol_meter_width = 1.25 * icon_width;
if (vol_meter_width % 4 != 0)
vol_meter_width -= (vol_meter_width % 4);
if (prefs_get_boolean("DrawVolMeter", FALSE)) {
int lim;
if (vol_meter_row)
g_free(vol_meter_row);
vol_meter_row = g_malloc(vol_meter_width * sizeof(guchar));
lim = vol_meter_width / 4;
for (i = 0; i < lim; i++) {
vol_meter_row[i * 4] = vol_meter_red;
vol_meter_row[i * 4 + 1] = vol_meter_green;
vol_meter_row[i * 4 + 2] = vol_meter_blue;
vol_meter_row[i * 4 + 3] = 255;
}
} else {
if (vol_meter_row)
g_free(vol_meter_row);
vol_meter_row = NULL;
if (icon_copy)
g_object_unref(icon_copy);
icon_copy = NULL;
}
draw_offset = prefs_get_integer("VolMeterPos", 0);
if (tray_icon)
on_volume_has_changed();
for (i = 0; i < N_VOLUME_ICONS; i++)
if (old_icons[i])
g_object_unref(old_icons[i]);
}