1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
3 * Copyright (C) 2007 Jan Arne Petersen <jap@gnome.org>
4 * Copyright (C) 2008 Bastien Nocera <hadess@hadess.net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 #include "ev-media-player-keys.h"
30 #define SD_NAME "org.gnome.SettingsDaemon"
31 #define SD_OBJECT_PATH "/org/gnome/SettingsDaemon/MediaKeys"
32 #define SD_INTERFACE "org.gnome.SettingsDaemon.MediaKeys"
39 struct _EvMediaPlayerKeys
43 GDBusConnection *connection;
45 guint subscription_id;
48 struct _EvMediaPlayerKeysClass
50 GObjectClass parent_class;
53 void (* key_pressed) (EvMediaPlayerKeys *keys,
57 static guint signals[LAST_SIGNAL];
59 G_DEFINE_TYPE (EvMediaPlayerKeys, ev_media_player_keys, G_TYPE_OBJECT)
61 static void ev_media_player_keys_finalize (GObject *object);
64 ev_media_player_keys_class_init (EvMediaPlayerKeysClass *klass)
66 GObjectClass *object_class = G_OBJECT_CLASS (klass);
68 signals[KEY_PRESSED] =
69 g_signal_new ("key_pressed",
70 EV_TYPE_MEDIA_PLAYER_KEYS,
72 G_STRUCT_OFFSET (EvMediaPlayerKeysClass, key_pressed),
74 g_cclosure_marshal_VOID__STRING,
78 object_class->finalize = ev_media_player_keys_finalize;
82 ev_media_player_keys_grab_keys (EvMediaPlayerKeys *keys)
85 * The uint as second argument is time. We give a very low value so that
86 * if a media player is there it gets higher priority on the keys (0 is
87 * a special value having maximum priority).
89 g_dbus_connection_call (keys->connection,
93 "GrabMediaPlayerKeys",
94 g_variant_new ("(su)", "Evince", 1),
95 G_DBUS_CALL_FLAGS_NO_AUTO_START,
101 ev_media_player_keys_release_keys (EvMediaPlayerKeys *keys)
103 g_dbus_connection_call (keys->connection,
107 "ReleaseMediaPlayerKeys",
108 g_variant_new ("(s)", "Evince"),
109 G_DBUS_CALL_FLAGS_NO_AUTO_START,
115 media_player_key_pressed_cb (GDBusConnection *connection,
116 const gchar *sender_name,
117 const gchar *object_path,
118 const gchar *interface_name,
119 const gchar *signal_name,
120 GVariant *parameters,
123 const char *application, *key;
125 if (g_strcmp0 (sender_name, SD_NAME) != 0)
127 if (g_strcmp0 (signal_name, "MediaPlayerKeyPressed") != 0)
130 if (!g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(ss)")))
133 g_variant_get (parameters, "(&s&s)", &application, &key);
135 if (strcmp ("Evince", application) == 0) {
136 g_signal_emit (user_data, signals[KEY_PRESSED], 0, key);
141 mediakeys_service_appeared_cb (GDBusConnection *connection,
143 const char *name_owner,
146 EvMediaPlayerKeys *keys = EV_MEDIA_PLAYER_KEYS (user_data);
148 keys->connection = g_object_ref (connection);
150 keys->subscription_id = g_dbus_connection_signal_subscribe (connection,
153 "MediaPlayerKeyPressed",
156 media_player_key_pressed_cb,
159 ev_media_player_keys_grab_keys (keys);
163 mediakeys_service_disappeared_cb (GDBusConnection *connection,
167 EvMediaPlayerKeys *keys = EV_MEDIA_PLAYER_KEYS (user_data);
169 if (keys->connection == NULL)
172 g_assert (keys->connection == connection);
174 g_dbus_connection_signal_unsubscribe (connection, keys->subscription_id);
175 keys->subscription_id = 0;
177 g_object_unref (keys->connection);
178 keys->connection = NULL;
182 ev_media_player_keys_init (EvMediaPlayerKeys *keys)
184 keys->watch_id = g_bus_watch_name (G_BUS_TYPE_SESSION,
186 G_BUS_NAME_WATCHER_FLAGS_NONE,
187 mediakeys_service_appeared_cb,
188 mediakeys_service_disappeared_cb,
193 ev_media_player_keys_focused (EvMediaPlayerKeys *keys)
195 if (keys->connection == NULL)
198 ev_media_player_keys_grab_keys (keys);
202 ev_media_player_keys_finalize (GObject *object)
204 EvMediaPlayerKeys *keys = EV_MEDIA_PLAYER_KEYS (object);
206 ev_media_player_keys_release_keys (keys);
208 if (keys->subscription_id != 0) {
209 g_assert (keys->connection != NULL);
210 g_dbus_connection_signal_unsubscribe (keys->connection, keys->subscription_id);
211 g_object_unref (keys->connection);
214 g_bus_unwatch_name (keys->watch_id);
216 G_OBJECT_CLASS (ev_media_player_keys_parent_class)->finalize (object);
220 ev_media_player_keys_new (void)
222 return g_object_new (EV_TYPE_MEDIA_PLAYER_KEYS, NULL);