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
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
/*
This service primarily controls PulseAudio and is driven by the sound indicator menu on the panel.
Copyright 2010 Canonical Ltd.
Authors:
Conor Curran <conor.curran@canonical.com>
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License version 3, as published
by the Free Software Foundation.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranties of
MERCHANTABILITY, SATISFACTORY QUALITY, 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/>.
*/
using DBus;
[DBus (name = "org.mpris.MediaPlayer2")]
public interface MprisRoot : DBus.Object {
// properties
public abstract bool HasTracklist{owned get; set;}
public abstract bool CanQuit{owned get; set;}
public abstract bool CanRaise{owned get; set;}
public abstract string Identity{owned get; set;}
public abstract string DesktopEntry{owned get; set;}
// methods
public abstract void Quit() throws DBus.Error;
public abstract void Raise() throws DBus.Error;
}
[DBus (name = "org.mpris.MediaPlayer2.Player")]
public interface MprisPlayer : DBus.Object {
// properties
public abstract HashTable<string, Value?> Metadata{owned get; set;}
public abstract int32 Position{owned get; set;}
public abstract string PlaybackStatus{owned get; set;}
// methods
public abstract void SetPosition(DBus.ObjectPath path, int64 pos) throws DBus.Error;
public abstract void PlayPause() throws DBus.Error;
public abstract void Pause() throws DBus.Error;
public abstract void Next() throws DBus.Error;
public abstract void Previous() throws DBus.Error;
// signals
public signal void Seeked(int64 new_position);
}
[DBus (name = "org.freedesktop.DBus.Properties")]
public interface FreeDesktopProperties : DBus.Object{
// signals
public signal void PropertiesChanged(string source, HashTable<string, Value?> changed_properties, string[] invalid);
}
/*
This class will entirely replace mpris-controller.vala hence why there is no
point in trying to get encorporate both into the same object model.
*/
public class Mpris2Controller : GLib.Object
{
public static const string root_interface = "org.mpris.MediaPlayer2" ;
public MprisRoot mpris2_root {get; construct;}
public MprisPlayer player {get; construct;}
public PlayerController owner {get; construct;}
public FreeDesktopProperties properties_interface {get; construct;}
public Mpris2Controller(PlayerController ctrl)
{
GLib.Object(owner: ctrl);
}
construct{
try {
var connection = DBus.Bus.get (DBus.BusType.SESSION);
this.mpris2_root = (MprisRoot) connection.get_object (root_interface.concat(".").concat(this.owner.name.down()),
"/org/mpris/MediaPlayer2",
root_interface);
this.player = (MprisPlayer) connection.get_object (root_interface.concat(".").concat(this.owner.name.down()),
"/org/mpris/MediaPlayer2",
root_interface.concat(".Player"));
this.player.Seeked += onSeeked;
this.properties_interface = (FreeDesktopProperties) connection.get_object(root_interface.concat(".").concat(this.owner.name.down()),
"/org/mpris/MediaPlayer2",
"org.freedesktop.DBus.Properties");
this.properties_interface.PropertiesChanged += property_changed_cb;
} catch (DBus.Error e) {
error("Problems connecting to the session bus - %s", e.message);
}
}
public void property_changed_cb(string interface_source, HashTable<string, Value?> changed_properties, string[] invalid )
{
debug("properties-changed for interface %s and owner %s", interface_source, this.owner.name.down());
if(changed_properties == null || interface_source.has_prefix(this.root_interface) == false){
warning("Property-changed hash is null or this is an interface that concerns us");
return;
}
Value? play_v = changed_properties.lookup("PlaybackStatus");
if(play_v != null){
string state = play_v.get_string();
debug("new playback state = %s", state);
TransportMenuitem.state p = (TransportMenuitem.state)this.determine_play_state(state);
(this.owner.custom_items[PlayerController.widget_order.TRANSPORT] as TransportMenuitem).change_play_state(p);
}
Value? pos_v = changed_properties.lookup("Position");
if(pos_v != null){
int64 pos = pos_v.get_int64();
debug("new position = %i", (int)pos);
}
Value? meta_v = changed_properties.lookup("Metadata");
if(meta_v != null){
GLib.HashTable<string, Value?> changed_updates = clean_metadata();
this.owner.custom_items[PlayerController.widget_order.METADATA].reset(MetadataMenuitem.attributes_format());
this.owner.custom_items[PlayerController.widget_order.METADATA].update(changed_updates,
MetadataMenuitem.attributes_format());
}
}
private GLib.HashTable<string, Value?> clean_metadata()
{
GLib.HashTable<string, Value?> changed_updates = this.player.Metadata;
Value? artist_v = this.player.Metadata.lookup("xesam:artist");
if(artist_v != null){
string[] artists = (string[])this.player.Metadata.lookup("xesam:artist");
string display_artists = string.joinv(", ", artists);
changed_updates.replace("xesam:artist", display_artists);
debug("artist : %s", display_artists);
}
Value? length_v = this.player.Metadata.lookup("mpris:length");
if(length_v != null){
int64 duration = this.player.Metadata.lookup("mpris:length").get_int64();
changed_updates.replace("mpris:length", duration/1000000);
}
return changed_updates;
}
private TransportMenuitem.state determine_play_state(string status){
if(status == null)
return TransportMenuitem.state.PAUSED;
if(status != null && status == "Playing"){
debug("determine play state - state = %s", status);
return TransportMenuitem.state.PLAYING;
}
return TransportMenuitem.state.PAUSED;
}
public void initial_update()
{
TransportMenuitem.state update;
if(this.player.PlaybackStatus == null){
update = TransportMenuitem.state.PAUSED;
}
else{
update = determine_play_state(this.player.PlaybackStatus);
}
debug("initial update - play state %i", (int)update);
(this.owner.custom_items[PlayerController.widget_order.TRANSPORT] as TransportMenuitem).change_play_state(update);
GLib.HashTable<string, Value?> cleaned_metadata = this.clean_metadata();
this.owner.custom_items[PlayerController.widget_order.METADATA].update(cleaned_metadata,
MetadataMenuitem.attributes_format());
}
public void transport_update(TransportMenuitem.action command)
{
debug("transport_event input = %i", (int)command);
if(command == TransportMenuitem.action.PLAY_PAUSE){
debug("transport_event PLAY_PAUSE");
try{
this.player.PlayPause();
}
catch(DBus.Error error){
warning("DBus Error calling the player objects PlayPause method %s",
error.message);
}
}
else if(command == TransportMenuitem.action.PREVIOUS){
try{
this.player.Previous();
}
catch(DBus.Error error){
warning("DBus Error calling the player objects Previous method %s",
error.message);
}
}
else if(command == TransportMenuitem.action.NEXT){
try{
this.player.Next();
}
catch(DBus.Error error){
warning("DBus Error calling the player objects Next method %s",
error.message);
}
}
}
/**
TODO: SetPosition on the player object is not working with rhythmbox,
runtime error - "dbus function not supported"
*/
public void set_track_position(double position)
{
debug("Set position with pos (0-100) %f", position);
Value? time_value = this.player.Metadata.lookup("mpris:length");
if(time_value == null){
warning("Can't fetch the duration of the track therefore cant set the position");
return;
}
// work in microseconds (scale up by 10 TTP-of 6)
int64 total_time = time_value.get_int64();
debug("total time of track = %i", (int)total_time);
double new_time_position = total_time * (position/100.0);
debug("new position = %f", (new_time_position));
Value? v = this.player.Metadata.lookup("mpris:trackid");
if(v != null){
if(v.holds (typeof (string))){
DBus.ObjectPath path = new ObjectPath(v.get_string());
try{
this.player.SetPosition(path, (int64)(new_time_position));
}
catch(DBus.Error e){
error("DBus Error calling the player objects SetPosition method %s",
e.message);
}
}
}
}
public void onSeeked(int64 position){
debug("Seeked signal callback with pos = %i", (int)position/1000);
}
public bool connected()
{
return (this.player != null && this.mpris2_root != null);
}
public bool was_successfull(){
if(this.mpris2_root == null ||this.player == null){
return false;
}
return true;
}
public void expose()
{
if(this.connected() == true){
try{
this.mpris2_root.Raise();
}
catch(DBus.Error e){
error("Exception thrown while calling function Raise - %s", e.message);
}
}
}
}
|
