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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
*
* Copyright (C) 2008 Red Hat, Inc.
* Copyright (C) 2014 Michal Ratajsky <michal.ratajsky@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include <string.h>
#include <glib.h>
#include <glib/gi18n.h>
#include <glib-object.h>
#include <gtk/gtk.h>
#include <libmatemixer/matemixer.h>
#include "gvc-applet.h"
#include "gvc-stream-status-icon.h"
#define GVC_APPLET_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GVC_TYPE_APPLET, GvcAppletPrivate))
static const gchar *icon_names_output[] = {
"audio-volume-muted",
"audio-volume-low",
"audio-volume-medium",
"audio-volume-high",
NULL
};
static const gchar *icon_names_input[] = {
"audio-input-microphone-muted",
"audio-input-microphone-low",
"audio-input-microphone-medium",
"audio-input-microphone-high",
NULL
};
struct _GvcAppletPrivate
{
GvcStreamStatusIcon *icon_input;
GvcStreamStatusIcon *icon_output;
gboolean running;
MateMixerContext *context;
MateMixerStream *input;
};
static void gvc_applet_class_init (GvcAppletClass *klass);
static void gvc_applet_init (GvcApplet *applet);
G_DEFINE_TYPE (GvcApplet, gvc_applet, G_TYPE_OBJECT)
static void
update_icon_input (GvcApplet *applet)
{
MateMixerStreamControl *control = NULL;
gboolean show = FALSE;
/* Enable the input icon in case there is an input stream present and there
* is a non-mixer application using the input */
if (applet->priv->input != NULL) {
const gchar *app_id;
const GList *inputs =
mate_mixer_stream_list_controls (applet->priv->input);
control = mate_mixer_stream_get_default_control (applet->priv->input);
while (inputs != NULL) {
MateMixerStreamControl *input =
MATE_MIXER_STREAM_CONTROL (inputs->data);
MateMixerStreamControlRole role =
mate_mixer_stream_control_get_role (input);
if (role == MATE_MIXER_STREAM_CONTROL_ROLE_APPLICATION) {
MateMixerAppInfo *app_info =
mate_mixer_stream_control_get_app_info (input);
app_id = mate_mixer_app_info_get_id (app_info);
if (app_id == NULL) {
/* A recording application which has no
* identifier set */
g_debug ("Found a recording application control %s",
mate_mixer_stream_control_get_label (input));
if G_UNLIKELY (control == NULL) {
/* In the unlikely case when there is no
* default input control, use the application
* control for the icon */
control = input;
}
show = TRUE;
break;
}
if (strcmp (app_id, "org.ukui.VolumeControl") != 0 &&
strcmp (app_id, "org.gnome.VolumeControl") != 0 &&
strcmp (app_id, "org.PulseAudio.pavucontrol") != 0) {
g_debug ("Found a recording application %s", app_id);
if G_UNLIKELY (control == NULL)
control = input;
show = TRUE;
break;
}
}
inputs = inputs->next;
}
if (show == TRUE)
g_debug ("Input icon enabled");
else
g_debug ("There is no recording application, input icon disabled");
}
gvc_stream_status_icon_set_control (applet->priv->icon_input, control);
gtk_status_icon_set_visible (GTK_STATUS_ICON (applet->priv->icon_input), show);
}
static void
update_icon_output (GvcApplet *applet)
{
MateMixerStream *stream;
MateMixerStreamControl *control = NULL;
stream = mate_mixer_context_get_default_output_stream (applet->priv->context);
if (stream != NULL)
control = mate_mixer_stream_get_default_control (stream);
gvc_stream_status_icon_set_control (applet->priv->icon_output, control);
if (control != NULL) {
g_debug ("Output icon enabled");
gtk_status_icon_set_visible (GTK_STATUS_ICON (applet->priv->icon_output),
TRUE);
}
else {
g_debug ("There is no output stream/control, output icon disabled");
gtk_status_icon_set_visible (GTK_STATUS_ICON (applet->priv->icon_output),
FALSE);
}
}
static void
on_input_stream_control_added (MateMixerStream *stream,
const gchar *name,
GvcApplet *applet)
{
MateMixerStreamControl *control;
control = mate_mixer_stream_get_control (stream, name);
if G_LIKELY (control != NULL) {
MateMixerStreamControlRole role =
mate_mixer_stream_control_get_role (control);
/* Non-application input control doesn't affect the icon */
if (role != MATE_MIXER_STREAM_CONTROL_ROLE_APPLICATION)
return;
}
/* Either an application control has been added or we couldn't
* read the control, this shouldn't happen but let's revalidate the
* icon to be sure if it does */
update_icon_input (applet);
}
static void
on_input_stream_control_removed (MateMixerStream *stream,
const gchar *name,
GvcApplet *applet)
{
/* The removed stream could be an application input, which may cause
* the input status icon to disappear */
update_icon_input (applet);
}
static gboolean
update_default_input_stream (GvcApplet *applet)
{
MateMixerStream *stream;
stream = mate_mixer_context_get_default_input_stream (applet->priv->context);
if (stream == applet->priv->input)
return FALSE;
/* The input stream has changed */
if (applet->priv->input != NULL) {
g_signal_handlers_disconnect_by_data (G_OBJECT (applet->priv->input),
applet);
g_object_unref (applet->priv->input);
}
applet->priv->input = g_object_ref (stream);
if (applet->priv->input != NULL) {
g_signal_connect (G_OBJECT (applet->priv->input),
"control-added",
G_CALLBACK (on_input_stream_control_added),
applet);
g_signal_connect (G_OBJECT (applet->priv->input),
"control-removed",
G_CALLBACK (on_input_stream_control_removed),
applet);
}
/* Return TRUE if the default input stream has changed */
return TRUE;
}
static void
on_context_state_notify (MateMixerContext *context,
GParamSpec *pspec,
GvcApplet *applet)
{
MateMixerState state = mate_mixer_context_get_state (context);
switch (state) {
case MATE_MIXER_STATE_FAILED:
g_warning ("Failed to connect to a sound system");
break;
case MATE_MIXER_STATE_READY:
update_default_input_stream (applet);
/* Each status change may affect the visibility of the icons */
update_icon_output (applet);
update_icon_input (applet);
break;
default:
break;
}
}
static void
on_context_default_input_stream_notify (MateMixerContext *context,
GParamSpec *pspec,
GvcApplet *applet)
{
if (update_default_input_stream (applet) == FALSE)
return;
update_icon_input (applet);
}
static void
on_context_default_output_stream_notify (MateMixerContext *control,
GParamSpec *pspec,
GvcApplet *applet)
{
update_icon_output (applet);
}
void
gvc_applet_start (GvcApplet *applet)
{
g_return_if_fail (GVC_IS_APPLET (applet));
if G_UNLIKELY (applet->priv->running == TRUE)
return;
if G_UNLIKELY (mate_mixer_context_open (applet->priv->context) == FALSE) {
/* Normally this should never happen, in the worst case we
* should end up with the Null module */
g_warning ("Failed to connect to a sound system");
}
g_debug ("Applet has been started");
applet->priv->running = TRUE;
}
static void
gvc_applet_dispose (GObject *object)
{
GvcApplet *applet = GVC_APPLET (object);
if (applet->priv->input != NULL) {
g_signal_handlers_disconnect_by_data (G_OBJECT (applet->priv->input),
applet);
g_clear_object (&applet->priv->input);
}
g_clear_object (&applet->priv->context);
g_clear_object (&applet->priv->icon_input);
g_clear_object (&applet->priv->icon_output);
G_OBJECT_CLASS (gvc_applet_parent_class)->dispose (object);
}
static void
gvc_applet_class_init (GvcAppletClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = gvc_applet_dispose;
g_type_class_add_private (klass, sizeof (GvcAppletPrivate));
}
static void
gvc_applet_init (GvcApplet *applet)
{
applet->priv = GVC_APPLET_GET_PRIVATE (applet);
applet->priv->icon_input = gvc_stream_status_icon_new (NULL, icon_names_input);
applet->priv->icon_output = gvc_stream_status_icon_new (NULL, icon_names_output);
gvc_stream_status_icon_set_display_name (applet->priv->icon_input, _("Input"));
gvc_stream_status_icon_set_display_name (applet->priv->icon_output, _("Output"));
gtk_status_icon_set_title (GTK_STATUS_ICON (applet->priv->icon_input),
_("Microphone Volume"));
gtk_status_icon_set_title (GTK_STATUS_ICON (applet->priv->icon_output),
_("Sound Output Volume"));
applet->priv->context = mate_mixer_context_new ();
mate_mixer_context_set_app_name (applet->priv->context,
_("UKUI Volume Control Applet"));
mate_mixer_context_set_app_id (applet->priv->context, GVC_APPLET_DBUS_NAME);
mate_mixer_context_set_app_version (applet->priv->context, VERSION);
mate_mixer_context_set_app_icon (applet->priv->context, "multimedia-volume-control");
g_signal_connect (G_OBJECT (applet->priv->context),
"notify::state",
G_CALLBACK (on_context_state_notify),
applet);
g_signal_connect (G_OBJECT (applet->priv->context),
"notify::default-input-stream",
G_CALLBACK (on_context_default_input_stream_notify),
applet);
g_signal_connect (G_OBJECT (applet->priv->context),
"notify::default-output-stream",
G_CALLBACK (on_context_default_output_stream_notify),
applet);
}
GvcApplet *
gvc_applet_new (void)
{
return g_object_new (GVC_TYPE_APPLET, NULL);
}
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