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/*
* Copyright © 2013 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU Lesser General Public License,
* version 2.1, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 this program; if not, see <http://www.gnu.org/licenses>
*
* Author: Michael Wood <michael.g.wood@intel.com>
*/
#include "mpris-controller.h"
#include "bus-watch-namespace.h"
#include <gio/gio.h>
G_DEFINE_TYPE (MprisController, mpris_controller, G_TYPE_OBJECT)
#define CONTROLLER_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE ((o), MPRIS_TYPE_CONTROLLER, MprisControllerPrivate))
struct _MprisControllerPrivate
{
GCancellable *cancellable;
GDBusProxy *mpris_client_proxy;
guint namespace_watcher_id;
GSList *other_players;
gboolean connecting;
};
static void
mpris_controller_dispose (GObject *object)
{
MprisControllerPrivate *priv = MPRIS_CONTROLLER (object)->priv;
g_clear_object (&priv->cancellable);
g_clear_object (&priv->mpris_client_proxy);
if (priv->namespace_watcher_id)
{
bus_unwatch_namespace (priv->namespace_watcher_id);
priv->namespace_watcher_id = 0;
}
if (priv->other_players)
{
g_slist_free_full (priv->other_players, g_free);
priv->other_players = NULL;
}
G_OBJECT_CLASS (mpris_controller_parent_class)->dispose (object);
}
static void
mpris_proxy_call_done (GObject *object,
GAsyncResult *res,
gpointer user_data)
{
GError *error = NULL;
GVariant *ret;
if (!(ret = g_dbus_proxy_call_finish (G_DBUS_PROXY (object), res, &error)))
{
g_warning ("Error calling method %s", error->message);
g_clear_error (&error);
return;
}
g_variant_unref (ret);
}
gboolean
mpris_controller_key (MprisController *self, const gchar *key)
{
MprisControllerPrivate *priv = MPRIS_CONTROLLER (self)->priv;
if (!priv->mpris_client_proxy)
return FALSE;
if (g_strcmp0 (key, "Play") == 0)
key = "PlayPause";
g_debug ("calling %s over dbus to mpris client %s",
key, g_dbus_proxy_get_name (priv->mpris_client_proxy));
g_dbus_proxy_call (priv->mpris_client_proxy,
key, NULL, 0, -1, priv->cancellable,
mpris_proxy_call_done,
NULL);
return TRUE;
}
static void
mpris_proxy_ready_cb (GObject *object,
GAsyncResult *res,
gpointer user_data)
{
MprisControllerPrivate *priv = MPRIS_CONTROLLER (user_data)->priv;
GError *error = NULL;
priv->mpris_client_proxy = g_dbus_proxy_new_for_bus_finish (res, &error);
if (!priv->mpris_client_proxy)
g_warning ("Error connecting to mpris interface %s", error->message);
priv->connecting = FALSE;
g_clear_error (&error);
}
static void
start_mpris_proxy (MprisController *self, const gchar *name)
{
MprisControllerPrivate *priv = MPRIS_CONTROLLER (self)->priv;
g_debug ("Creating proxy for for %s", name);
g_dbus_proxy_new_for_bus (G_BUS_TYPE_SESSION,
0,
NULL,
name,
"/org/mpris/MediaPlayer2",
"org.mpris.MediaPlayer2.Player",
priv->cancellable,
mpris_proxy_ready_cb,
self);
priv->connecting = TRUE;
}
static void
mpris_player_appeared (GDBusConnection *connection,
const gchar *name,
const gchar *name_owner,
gpointer user_data)
{
MprisController *self = user_data;
MprisControllerPrivate *priv = MPRIS_CONTROLLER (self)->priv;
if (priv->mpris_client_proxy == NULL && !priv->connecting)
start_mpris_proxy (self, name);
else
self->priv->other_players = g_slist_prepend (self->priv->other_players, g_strdup (name));
}
static void
mpris_player_vanished (GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
MprisController *self = user_data;
MprisControllerPrivate *priv = MPRIS_CONTROLLER (self)->priv;
if (priv->mpris_client_proxy &&
g_strcmp0 (name, g_dbus_proxy_get_name (priv->mpris_client_proxy)) == 0)
{
g_clear_object (&priv->mpris_client_proxy);
/* take the next one if there's one */
if (self->priv->other_players && !priv->connecting)
{
GSList *first;
gchar *name;
first = self->priv->other_players;
name = first->data;
start_mpris_proxy (self, name);
self->priv->other_players = self->priv->other_players->next;
g_free (name);
g_slist_free_1 (first);
}
}
}
static void
mpris_controller_constructed (GObject *object)
{
MprisControllerPrivate *priv = MPRIS_CONTROLLER (object)->priv;
priv->namespace_watcher_id = bus_watch_namespace (G_BUS_TYPE_SESSION,
"org.mpris.MediaPlayer2",
mpris_player_appeared,
mpris_player_vanished,
MPRIS_CONTROLLER (object),
NULL);
}
static void
mpris_controller_class_init (MprisControllerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (MprisControllerPrivate));
object_class->constructed = mpris_controller_constructed;
object_class->dispose = mpris_controller_dispose;
}
static void
mpris_controller_init (MprisController *self)
{
self->priv = CONTROLLER_PRIVATE (self);
}
MprisController *
mpris_controller_new (void)
{
return g_object_new (MPRIS_TYPE_CONTROLLER, NULL);
}
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