aboutsummaryrefslogtreecommitdiff
path: root/src/mpris2-controller.vala
blob: 297506638d1a971683719db2c1fa69647fbd206f (plain)
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
/*
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 Dbusmenu;
using Transport;

/*
 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 MprisRoot mpris2_root {get; construct;}    
  public MprisPlayer player {get; construct;}
  public MprisPlaylists playlists {get; construct;}
  public FreeDesktopProperties properties_interface {get; construct;}

  public PlayerController owner {get; construct;}

  public Mpris2Controller(PlayerController ctrl)
  {
    GLib.Object(owner: ctrl); 
  }

  construct{
    try {
      this.mpris2_root = Bus.get_proxy_sync ( BusType.SESSION,
                                              this.owner.dbus_name,
                                              "/org/mpris/MediaPlayer2" );
      this.player = Bus.get_proxy_sync ( BusType.SESSION,
                                         this.owner.dbus_name,
                                         "/org/mpris/MediaPlayer2" );
      this.properties_interface = Bus.get_proxy_sync ( BusType.SESSION,
                                                       "org.freedesktop.Properties.PropertiesChanged",
                                                       "/org/mpris/MediaPlayer2" );
      this.properties_interface.PropertiesChanged.connect ( property_changed_cb );
      if ( this.owner.use_playlists == true ){
        this.playlists = Bus.get_proxy_sync ( BusType.SESSION,
                                              this.owner.dbus_name,
                                              "/org/mpris/MediaPlayer2" );
        this.playlists.PlaylistChanged.connect (on_playlistdetails_changed);
      }
    }
    catch (IOError e) {
      critical("Problems connecting to the session bus - %s", e.message);
    }
  }

  public void property_changed_cb ( string interface_source,
                                    HashTable<string, Variant?> changed_properties,
                                    string[] invalid )
  {
    //debug("properties-changed for interface %s and owner %s", interface_source, this.owner.dbus_name);
    if ( changed_properties == null ||
        interface_source.has_prefix ( MPRIS_PREFIX ) == false ){
      warning("Property-changed hash is null or this is an interface that doesn't concern us");
      return;
    }
    Variant? play_v = changed_properties.lookup("PlaybackStatus");
    if(play_v != null){
      // Race condition sometimes appears with the playback status 
      // 200ms timeout ensures we have the correct playback status at all times.
      string state = this.player.PlaybackStatus;
      //debug("in the property update and the playback status = %s and update = %s", state, (string)play_v);
      Timeout.add ( 200, ensure_correct_playback_status );
      Transport.State p = (Transport.State)this.determine_play_state(state);
      (this.owner.custom_items[PlayerController.widget_order.TRANSPORT] as TransportMenuitem).change_play_state(p);
    }
    Variant? meta_v = changed_properties.lookup("Metadata");
    if(meta_v != null){
      GLib.HashTable<string, Variant?> changed_updates = clean_metadata();      
      PlayerItem metadata = this.owner.custom_items[PlayerController.widget_order.METADATA];
      metadata.reset (MetadataMenuitem.relevant_attributes_for_ui());
      metadata.update ( changed_updates, 
                        MetadataMenuitem.relevant_attributes_for_ui());
      MetadataMenuitem md = this.owner.custom_items[PlayerController.widget_order.METADATA] as MetadataMenuitem;      
      bool collapsing = !metadata.populated(MetadataMenuitem.relevant_attributes_for_ui());
      md.should_collapse(collapsing);
      
      debug ("Should metadata collapse %s", collapsing.to_string());
    }
    Variant? playlist_v = changed_properties.lookup("ActivePlaylist");
    if ( playlist_v != null && this.owner.use_playlists == true ){
      // Once again A GDBus race condition, the property_changed signal is sent
      // before the value is set on the respective property.
      Timeout.add (300, this.fetch_active_playlist);
    }
    Variant? playlist_count_v = changed_properties.lookup("PlaylistCount");
    if ( playlist_count_v != null && this.owner.use_playlists == true ){
      this.fetch_playlists.begin();
      this.fetch_active_playlist();
    }
    Variant? playlist_orderings_v = changed_properties.lookup("Orderings");
    if ( playlist_orderings_v != null && this.owner.use_playlists == true ){
      this.fetch_playlists.begin();
      this.fetch_active_playlist();
    }
    Variant? identity_v = changed_properties.lookup("Identity");
    if (identity_v != null){
      MetadataMenuitem md = this.owner.custom_items[PlayerController.widget_order.METADATA] as MetadataMenuitem;      
      md.alter_label (this.mpris2_root.Identity);
    }
  }
                                      
  private bool ensure_correct_playback_status(){
    //debug("TEST playback status = %s", this.player.PlaybackStatus);
    Transport.State p = (Transport.State)this.determine_play_state(this.player.PlaybackStatus);
    (this.owner.custom_items[PlayerController.widget_order.TRANSPORT] as TransportMenuitem).change_play_state(p);
    return false;
  }
  
  private GLib.HashTable<string, Variant?>? clean_metadata()
  { 
    GLib.HashTable<string, Variant?> changed_updates = this.player.Metadata; 
    
    Variant? artist_v = this.player.Metadata.lookup("xesam:artist");
    if(artist_v != null){
      Variant? v_artists = this.player.Metadata.lookup("xesam:artist");
      //debug("artists is of type %s", v_artists.get_type_string ());
      string display_artists;
      if(v_artists.get_type_string() == "s"){
        //debug("SPOTIFY is that you ?");
        display_artists = v_artists.get_string();
      }
      else{
       string[] artists = v_artists.dup_strv();
        display_artists = string.joinv(", ", artists);
      }
      changed_updates.replace("xesam:artist", display_artists);
      //debug("artist : %s", (string)changed_updates.lookup("xesam:artist"));
    }
    return changed_updates;
  }
  
  private Transport.State determine_play_state(string? status){
    if(status != null && status == "Playing"){
      return Transport.State.PLAYING;
    }
    return Transport.State.PAUSED;
  }

  public void initial_update()
  {
    Transport.State update;
    
    if(this.player.PlaybackStatus == null){
      update = Transport.State.PAUSED;
    }
    else{
      update = determine_play_state (this.player.PlaybackStatus);
    }
    if (this.mpris2_root.Identity != null){
      MetadataMenuitem md = this.owner.custom_items[PlayerController.widget_order.METADATA] as MetadataMenuitem;      
      md.alter_label (this.mpris2_root.Identity);
    }
    (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());

    if ( this.owner.use_playlists == true ){
      this.fetch_playlists.begin();
      this.fetch_active_playlist();
    }
  }

  public void transport_update(Transport.Action command)
  {
    //debug("transport_event input = %i", (int)command);
    if(command == Transport.Action.PLAY_PAUSE){
      this.player.PlayPause.begin();              
    }
    else if(command == Transport.Action.PREVIOUS){
      this.player.Previous.begin();
    }
    else if(command == Transport.Action.NEXT){
      this.player.Next.begin();
    }
    else if(command == Transport.Action.REWIND){
     //debug("transport_event rewind = %i", (int)command);
     this.player.Seek.begin(-500000);
    }
    else if(command == Transport.Action.FORWIND){
     //debug("transport_event input = %i", (int)command);
     this.player.Seek.begin(400000);
    }
  }

  public bool connected()
  {
    return (this.player != null && this.mpris2_root != null);
  }

  public void expose()
  {
    if(this.connected() == true){
      this.mpris2_root.Raise.begin();
    }
  }

  private void on_playlistdetails_changed (PlaylistDetails details)
  {
    PlaylistsMenuitem playlists_item = this.owner.custom_items[PlayerController.widget_order.PLAYLISTS] as PlaylistsMenuitem;
    playlists_item.update_individual_playlist (details);    
  }

  public async void fetch_playlists()
  {
    PlaylistDetails[] current_playlists = null;
    
    try{   
      current_playlists =  yield this.playlists.GetPlaylists (0,
                                                              10,
                                                              "Alphabetical",
                                                              false);
    }
    catch (IOError e){
      //debug("Could not fetch playlists because %s", e.message);
      return;
    }
    
    if( current_playlists != null ){
      //debug( "Size of the playlist array = %i", current_playlists.length );
      PlaylistsMenuitem playlists_item = this.owner.custom_items[PlayerController.widget_order.PLAYLISTS] as PlaylistsMenuitem;
      playlists_item.update(current_playlists);
    }
    else{
      warning(" Playlists are on but its returning no current_playlists" );
      this.owner.use_playlists = false;
    }
  }

  private bool fetch_active_playlist()
  {    
    if (this.playlists.ActivePlaylist.valid == false){
      //debug(" We don't have an active playlist");
    }    
    PlaylistsMenuitem playlists_item = this.owner.custom_items[PlayerController.widget_order.PLAYLISTS] as PlaylistsMenuitem;
    playlists_item.active_playlist_update ( this.playlists.ActivePlaylist.details );
    return false;
  }

  public void activate_playlist (ObjectPath path)
  {
    try{
      this.playlists.ActivatePlaylist.begin(path);
    }
    catch(IOError e){
      //debug("Could not activate playlist %s because %s", (string)path, e.message);
    }
  }
}