1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
/*
* Copyright 2016 Canonical Ltd.
* Copyright 2021 Robert Tari
*
* 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; version 3.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Xavi Garcia <xavi.garcia.mena@canonical.com>
* Robert Tari <robert@tari.in>
*/
using PulseAudio;
using Notify;
using Gee;
[DBus (name="org.ayatana.Greeter.List")]
interface GreeterListInterfaceAccess : Object
{
public abstract async string get_active_entry () throws GLib.DBusError, GLib.IOError;
public signal void entry_selected (string entry_name);
}
public class AccountsServiceAccess : Object
{
private DBusProxy _user_proxy;
private GreeterListInterfaceAccess _greeter_proxy;
private double _volume = 0.0;
private string _last_running_player = "";
private bool _mute = false;
private Cancellable _dbus_call_cancellable;
public AccountsServiceAccess ()
{
_dbus_call_cancellable = new Cancellable ();
setup_accountsservice.begin ();
}
~AccountsServiceAccess ()
{
_dbus_call_cancellable.cancel ();
}
public string last_running_player
{
get
{
return _last_running_player;
}
set
{
sync_last_running_player_to_accountsservice.begin (value);
}
}
public bool mute
{
get
{
return _mute;
}
set
{
sync_mute_to_accountsservice.begin (value);
}
}
public double volume
{
get
{
return _volume;
}
set
{
sync_volume_to_accountsservice.begin (value);
}
}
/* AccountsService operations */
private void accountsservice_props_changed_cb (DBusProxy proxy, Variant changed_properties, string[]? invalidated_properties)
{
Variant volume_variant = changed_properties.lookup_value ("Volume", VariantType.DOUBLE);
if (volume_variant != null) {
var volume = volume_variant.get_double ();
if (volume >= 0 && _volume != volume) {
_volume = volume;
this.notify_property("volume");
}
}
Variant mute_variant = changed_properties.lookup_value ("Muted", VariantType.BOOLEAN);
if (mute_variant != null) {
_mute = mute_variant.get_boolean ();
this.notify_property("mute");
}
Variant last_running_player_variant = changed_properties.lookup_value ("LastRunningPlayer", VariantType.STRING);
if (last_running_player_variant != null) {
_last_running_player = last_running_player_variant.get_string ();
this.notify_property("last-running-player");
}
}
private async void setup_user_proxy (string? username_in = null)
{
var username = username_in;
_user_proxy = null;
// Look up currently selected greeter user, if asked
if (username == null) {
try {
username = yield _greeter_proxy.get_active_entry ();
if (username == "" || username == null)
return;
} catch (GLib.Error e) {
warning ("unable to find Accounts path for user %s: %s", username == null ? "null" : username, e.message);
return;
}
}
// Get master AccountsService object
DBusProxy accounts_proxy;
try {
accounts_proxy = yield new DBusProxy.for_bus (BusType.SYSTEM, DBusProxyFlags.DO_NOT_LOAD_PROPERTIES | DBusProxyFlags.DO_NOT_CONNECT_SIGNALS, null, "org.freedesktop.Accounts", "/org/freedesktop/Accounts", "org.freedesktop.Accounts");
} catch (GLib.Error e) {
warning ("unable to get greeter proxy: %s", e.message);
return;
}
// Find user's AccountsService object
try {
var user_path_variant = yield accounts_proxy.call ("FindUserByName", new Variant ("(s)", username), DBusCallFlags.NONE, -1);
string user_path;
if (user_path_variant.check_format_string ("(o)", true)) {
user_path_variant.get ("(o)", out user_path);
#if HAS_LOMIRI_ACCTSERVICE_SOUND_SETTINGS
_user_proxy = yield new DBusProxy.for_bus (BusType.SYSTEM, DBusProxyFlags.GET_INVALIDATED_PROPERTIES, null, "org.freedesktop.Accounts", user_path, "com.lomiri.AccountsService.Sound");
#else
_user_proxy = yield new DBusProxy.for_bus (BusType.SYSTEM, DBusProxyFlags.GET_INVALIDATED_PROPERTIES, null, "org.freedesktop.Accounts", user_path, "org.ayatana.AccountsService.Sound");
#endif
} else {
warning ("Unable to find user name after calling FindUserByName. Expected type: %s and obtained %s", "(o)", user_path_variant.get_type_string () );
return;
}
} catch (GLib.Error e) {
warning ("unable to find Accounts path for user %s: %s", username, e.message);
return;
}
// Get current values and listen for changes
_user_proxy.g_properties_changed.connect (accountsservice_props_changed_cb);
try {
var props_variant = yield _user_proxy.get_connection ().call (_user_proxy.get_name (), _user_proxy.get_object_path (), "org.freedesktop.DBus.Properties", "GetAll", new Variant ("(s)", _user_proxy.get_interface_name ()), null, DBusCallFlags.NONE, -1);
if (props_variant.check_format_string ("(@a{sv})", true)) {
Variant props;
props_variant.get ("(@a{sv})", out props);
accountsservice_props_changed_cb(_user_proxy, props, null);
} else {
warning ("Unable to get accounts service properties after calling GetAll. Expected type: %s and obtained %s", "(@a{sv})", props_variant.get_type_string () );
return;
}
} catch (GLib.Error e) {
debug("Unable to get properties for user %s at first try: %s", username, e.message);
}
}
private void greeter_user_changed (string username)
{
setup_user_proxy.begin (username);
}
private async void setup_accountsservice ()
{
if (Environment.get_variable ("XDG_SESSION_CLASS") == "greeter") {
try {
_greeter_proxy = yield Bus.get_proxy (BusType.SESSION, "org.ayatana.Greeter", "/list");
} catch (GLib.Error e) {
warning ("unable to get greeter proxy: %s", e.message);
return;
}
_greeter_proxy.entry_selected.connect (greeter_user_changed);
yield setup_user_proxy ();
} else {
// We are in a user session. We just need our own proxy
unowned string username = Environment.get_variable ("USER");
if (username != null && username != "") {
yield setup_user_proxy (username);
}
}
}
private async void sync_last_running_player_to_accountsservice (string last_running_player)
{
if (_user_proxy == null)
return;
try {
yield _user_proxy.get_connection ().call (_user_proxy.get_name (), _user_proxy.get_object_path (), "org.freedesktop.DBus.Properties", "Set", new Variant ("(ssv)", _user_proxy.get_interface_name (), "LastRunningPlayer", new Variant ("s", last_running_player)), null, DBusCallFlags.NONE, -1, _dbus_call_cancellable);
} catch (GLib.Error e) {
warning ("unable to sync last running player %s to AccountsService: %s",last_running_player, e.message);
}
_last_running_player = last_running_player;
}
private async void sync_volume_to_accountsservice (double volume)
{
if (_user_proxy == null)
return;
try {
yield _user_proxy.get_connection ().call (_user_proxy.get_name (), _user_proxy.get_object_path (), "org.freedesktop.DBus.Properties", "Set", new Variant ("(ssv)", _user_proxy.get_interface_name (), "Volume", new Variant ("d", volume)), null, DBusCallFlags.NONE, -1, _dbus_call_cancellable);
} catch (GLib.Error e) {
warning ("unable to sync volume %f to AccountsService: %s", volume, e.message);
}
}
private async void sync_mute_to_accountsservice (bool mute)
{
if (_user_proxy == null)
return;
try {
yield _user_proxy.get_connection ().call (_user_proxy.get_name (), _user_proxy.get_object_path (), "org.freedesktop.DBus.Properties", "Set", new Variant ("(ssv)", _user_proxy.get_interface_name (), "Muted", new Variant ("b", mute)), null, DBusCallFlags.NONE, -1, _dbus_call_cancellable);
} catch (GLib.Error e) {
warning ("unable to sync mute %s to AccountsService: %s", mute ? "true" : "false", e.message);
}
}
}
|
