aboutsummaryrefslogtreecommitdiff
path: root/src/sound-service-dbus.c
blob: 7f5afdc618a635945febc11d2cd2a27dd4b68afe (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
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
/*
 * 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/>.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <gio/gio.h>
#include <unistd.h>
#include <glib/gi18n.h>
#include <libindicator/indicator-service.h>
#include <libdbusmenu-glib/server.h>
#include <libdbusmenu-glib/client.h>

#include "sound-service-dbus.h"

#include "gen-sound-service.xml.h"
#include "dbus-shared-names.h"
#include "pulse-manager.h"
#include "slider-menu-item.h"
#include "mute-menu-item.h"
#include "pulse-manager.h"

// DBUS methods
static void bus_method_call (GDBusConnection * connection,
                             const gchar * sender,
                             const gchar * path,
                             const gchar * interface,
                             const gchar * method,
                             GVariant * params, 
                             GDBusMethodInvocation * invocation,
                             gpointer user_data);

static GDBusInterfaceVTable       interface_table = {
	method_call:	bus_method_call,
	get_property:	NULL, /* No properties */
	set_property:	NULL  /* No properties */
};


typedef struct _SoundServiceDbusPrivate SoundServiceDbusPrivate;

struct _SoundServiceDbusPrivate {
        GDBusConnection*    connection;
        DbusmenuMenuitem*   root_menuitem;
        SliderMenuItem*     volume_slider_menuitem;
        MuteMenuItem*       mute_menuitem;
        SoundState          current_sound_state;
};

static GDBusNodeInfo *            node_info = NULL;
static GDBusInterfaceInfo *       interface_info = NULL;
static gboolean                   b_startup = TRUE;
#define SOUND_SERVICE_DBUS_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), SOUND_SERVICE_DBUS_TYPE, SoundServiceDbusPrivate))

static void sound_service_dbus_class_init (SoundServiceDbusClass *klass);
static void sound_service_dbus_init       (SoundServiceDbus *self);
static void sound_service_dbus_dispose    (GObject *object);
static void sound_service_dbus_finalize   (GObject *object);

static void sound_service_dbus_build_sound_menu ( SoundServiceDbus* root,
                                                  gboolean mute_update,
                                                  gboolean availability,
                                                  gdouble volume );
static void show_sound_settings_dialog (DbusmenuMenuitem *mi,
                                        gpointer user_data);
static SoundState sound_service_dbus_get_state_from_volume (SoundServiceDbus* self);
static void sound_service_dbus_determine_state (SoundServiceDbus* self, 
                                                gboolean availability,
                                                gboolean mute,
                                                gdouble volume);
static gboolean sound_service_dbus_blacklist_player (SoundServiceDbus* self,
                                                     gchar* player_name,
                                                     gboolean blacklist); 


G_DEFINE_TYPE (SoundServiceDbus, sound_service_dbus, G_TYPE_OBJECT);

static void
sound_service_dbus_class_init (SoundServiceDbusClass *klass)
{
  GObjectClass *object_class = G_OBJECT_CLASS (klass);

  g_type_class_add_private (object_class, sizeof(SoundServiceDbusPrivate));

  object_class->dispose = sound_service_dbus_dispose;
  object_class->finalize = sound_service_dbus_finalize;

  g_assert(klass != NULL);

  if (node_info == NULL) {
    GError * error = NULL;

    node_info = g_dbus_node_info_new_for_xml(_sound_service, &error);
    if (error != NULL) {
      g_error("Unable to parse Indicator Service Interface description: %s",
               error->message);
      g_error_free(error);
    }
  }

  if (interface_info == NULL) {
    interface_info = g_dbus_node_info_lookup_interface (node_info,
                                                        INDICATOR_SOUND_DBUS_INTERFACE);

    if (interface_info == NULL) {
      g_error("Unable to find interface '" INDICATOR_SOUND_DBUS_INTERFACE "'");
    }
  }
}

static void
sound_service_dbus_init (SoundServiceDbus *self)
{
  GError *error = NULL;
  SoundServiceDbusPrivate * priv = SOUND_SERVICE_DBUS_GET_PRIVATE(self);

  priv->connection = NULL;

  priv->current_sound_state = UNAVAILABLE;

  /* Fetch the session bus */
  priv->connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);

  if (error != NULL) {
    g_error("sound-service-dbus:Unable to connect to the session bus when creating indicator sound service : %s", error->message);
    g_error_free(error);
    return;
  }
  /* register the service on it */
  g_dbus_connection_register_object (priv->connection,
                                     INDICATOR_SOUND_SERVICE_DBUS_OBJECT_PATH,
                                     interface_info,
                                     &interface_table,
                                     self,
                                     NULL,
                                     &error);
	if (error != NULL) {
		g_error("Unable to register the object to DBus: %s", error->message);
		g_error_free(error);
		return;
	}
}

DbusmenuMenuitem*
sound_service_dbus_create_root_item (SoundServiceDbus* self)
{
  SoundServiceDbusPrivate * priv = SOUND_SERVICE_DBUS_GET_PRIVATE(self);
  priv->root_menuitem = dbusmenu_menuitem_new();
  g_debug("Root ID: %d", dbusmenu_menuitem_get_id(priv->root_menuitem));
  DbusmenuServer *server = dbusmenu_server_new(INDICATOR_SOUND_MENU_DBUS_OBJECT_PATH);
  dbusmenu_server_set_root (server, priv->root_menuitem);
  g_object_unref (priv->root_menuitem);
  establish_pulse_activities (self);
  return priv->root_menuitem;
}

static void
sound_service_dbus_build_sound_menu ( SoundServiceDbus* self,
                                      gboolean mute_update,
                                      gboolean availability,
                                      gdouble volume )
{
  SoundServiceDbusPrivate * priv = SOUND_SERVICE_DBUS_GET_PRIVATE(self);

  // Mute button
  priv->mute_menuitem = mute_menu_item_new ( mute_update, availability);
  dbusmenu_menuitem_child_append (priv->root_menuitem,
                                  mute_menu_item_get_button (priv->mute_menuitem));
  
  // Slider
  priv->volume_slider_menuitem = slider_menu_item_new ( availability, volume );
  dbusmenu_menuitem_child_append (priv->root_menuitem, DBUSMENU_MENUITEM ( priv->volume_slider_menuitem ));

  // Separator
  
  DbusmenuMenuitem* separator = dbusmenu_menuitem_new();

  dbusmenu_menuitem_property_set( separator,
                                  DBUSMENU_MENUITEM_PROP_TYPE,
                                  DBUSMENU_CLIENT_TYPES_SEPARATOR);
  dbusmenu_menuitem_child_append(priv->root_menuitem, separator);
  g_object_unref (separator);

  // Sound preferences dialog
  DbusmenuMenuitem* settings_mi = dbusmenu_menuitem_new();

  dbusmenu_menuitem_property_set( settings_mi,
                                  DBUSMENU_MENUITEM_PROP_LABEL,
                                  _("Sound Preferences..."));
  dbusmenu_menuitem_child_append(priv->root_menuitem, settings_mi);
  g_object_unref (settings_mi);  
  g_signal_connect(G_OBJECT(settings_mi), DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
                   G_CALLBACK(show_sound_settings_dialog), NULL);
  
  sound_service_dbus_determine_state (self, availability, mute_update, volume);
}

/**
show_sound_settings_dialog:
Bring up the gnome volume preferences dialog
**/
static void
show_sound_settings_dialog (DbusmenuMenuitem *mi,
                            gpointer user_data)
{
  GError * error = NULL;
  if (!g_spawn_command_line_async("gnome-volume-control --page=applications", &error) &&
      !g_spawn_command_line_async("xfce4-mixer", &error)) 
  {
    g_warning("Unable to show dialog: %s", error->message);
    g_error_free(error);
  }
}

void
sound_service_dbus_update_pa_state ( SoundServiceDbus* self,
                                     gboolean availability,
                                     gboolean mute_update,
                                     gdouble volume )
{
  g_debug("update pa state with availability of %i, mute value of %i and a volume percent is %f", availability, mute_update, volume);
  SoundServiceDbusPrivate * priv = SOUND_SERVICE_DBUS_GET_PRIVATE(self);

  if (b_startup == TRUE) {
    sound_service_dbus_build_sound_menu ( self,
                                          mute_update,
                                          availability,
                                          volume );
    b_startup = FALSE;
    return;
  }

  mute_menu_item_update ( priv->mute_menuitem,
                          mute_update );
  slider_menu_item_update ( priv->volume_slider_menuitem,
                            volume );

  mute_menu_item_enable ( priv->mute_menuitem, availability);
  slider_menu_item_enable ( priv->volume_slider_menuitem, 
                            availability );
  sound_service_dbus_determine_state (self, availability, mute_update, volume);  

}


static void
sound_service_dbus_dispose (GObject *object)
{
  G_OBJECT_CLASS (sound_service_dbus_parent_class)->dispose (object);
  return;
}

static void
sound_service_dbus_finalize (GObject *object)
{
  G_OBJECT_CLASS (sound_service_dbus_parent_class)->finalize (object);
  return;
}

// UNTIL PA-MANAGER IS REFACTORED AND THE ACTIVESINK CLASS IS CREATED LEAVE
// THE UI ELEMENTS SEPARATELY HANDLED LIKE THIS. 
void
sound_service_dbus_update_volume (SoundServiceDbus* self,
                                  gdouble  volume)
{
  SoundServiceDbusPrivate *priv = SOUND_SERVICE_DBUS_GET_PRIVATE (self);
  slider_menu_item_update (priv->volume_slider_menuitem, volume);
  sound_service_dbus_update_sound_state (self,
                                         sound_service_dbus_get_state_from_volume (self));
}

void
sound_service_dbus_update_sink_mute (SoundServiceDbus* self,
                                     gboolean mute_update)
{
  SoundServiceDbusPrivate *priv = SOUND_SERVICE_DBUS_GET_PRIVATE (self);
  mute_menu_item_update (priv->mute_menuitem, mute_update);
  SoundState state = sound_service_dbus_get_state_from_volume (self);
  if (mute_update == TRUE){
    state = MUTED;
  }
  sound_service_dbus_update_sound_state (self, state);
}

/*------- State calculators ------------------*/
static SoundState
sound_service_dbus_get_state_from_volume (SoundServiceDbus* self)
{
  SoundServiceDbusPrivate *priv = SOUND_SERVICE_DBUS_GET_PRIVATE (self);
  GVariant* v = dbusmenu_menuitem_property_get_variant (DBUSMENU_MENUITEM(priv->volume_slider_menuitem),
                                                        DBUSMENU_VOLUME_MENUITEM_LEVEL);
  gdouble volume_percent = g_variant_get_double (v);

  SoundState state = LOW_LEVEL;

  if (volume_percent < 30.0 && volume_percent > 0) {
    state = LOW_LEVEL;
  } 
  else if (volume_percent < 70.0 && volume_percent >= 30.0) {
    state = MEDIUM_LEVEL;
  } 
  else if (volume_percent >= 70.0) {
    state = HIGH_LEVEL;
  } 
  else if (volume_percent == 0.0) {
    state = ZERO_LEVEL;
  }
  return state;
}

static void
sound_service_dbus_determine_state (SoundServiceDbus* self, 
                                    gboolean availability,
                                    gboolean mute,
                                    gdouble volume)
{
  SoundState update;
  if (availability == FALSE) {
    update = UNAVAILABLE;
  }
  else if (mute == TRUE) {
    update = MUTED;
  }
  else{
    update = sound_service_dbus_get_state_from_volume (self);
  }
  sound_service_dbus_update_sound_state (self, update);    
}


// EMIT STATE SIGNAL

// TODO: this will be a bit messy until the pa_manager is sorted.
// And we figure out all of the edge cases.
void 
sound_service_dbus_update_sound_state (SoundServiceDbus* self,
                                       SoundState new_state)
{
  SoundServiceDbusPrivate *priv = SOUND_SERVICE_DBUS_GET_PRIVATE (self);
  SoundState update = new_state;
  // Ensure that after it has become available update the state with the current volume level
  if (new_state == AVAILABLE &&
      mute_menu_item_is_muted (priv->mute_menuitem) == FALSE){
      update = sound_service_dbus_get_state_from_volume (self);
  }
  if (update != BLOCKED){
    priv->current_sound_state = update;
  }

  GVariant* v_output = g_variant_new("(i)", (int)update);

  GError * error = NULL;

  g_debug ("emitting signal with value %i", (int)update);
  g_dbus_connection_emit_signal( priv->connection,
                                 NULL,
                                 INDICATOR_SOUND_SERVICE_DBUS_OBJECT_PATH,
                                 INDICATOR_SOUND_DBUS_INTERFACE,
                                 INDICATOR_SOUND_SIGNAL_STATE_UPDATE,
                                 v_output,
                                 &error );
  if (error != NULL) {
    g_error("Unable to emit signal 'sinkinputwhilemuted' because : %s", error->message);
    g_error_free(error);
    return;
  }
}

//HANDLE DBUS METHOD CALLS
// TODO we will need to implement the black_list method.
static void
bus_method_call (GDBusConnection * connection,
                 const gchar * sender,
                 const gchar * path,
                 const gchar * interface,
                 const gchar * method,
                 GVariant * params,
                 GDBusMethodInvocation * invocation,
                 gpointer user_data)
{ 
  SoundServiceDbus* service = SOUND_SERVICE_DBUS(user_data); 
  g_return_if_fail ( IS_SOUND_SERVICE_DBUS(service) );
  GVariant * retval = NULL;
  SoundServiceDbusPrivate *priv = SOUND_SERVICE_DBUS_GET_PRIVATE (service);

  if (g_strcmp0(method, "GetSoundState") == 0) {
    g_debug("Get state -  %i", priv->current_sound_state );
    retval =  g_variant_new ( "(i)", priv->current_sound_state);    
  }   
  else if (g_strcmp0(method, "BlacklistMediaPlayer") == 0) {    
    gboolean blacklist;
    gchar* player_name;
    g_variant_get (params, "(sb)", &player_name, &blacklist);
                   
    g_debug ("BlacklistMediaPlayer - bool %i", blacklist); 
    g_debug ("BlacklistMediaPlayer - name %s", player_name); 
    gboolean result = sound_service_dbus_blacklist_player (service,                                                           
                                                           player_name,
                                                           blacklist);
    retval =  g_variant_new ("(b)", result);
  }     
  else {
    g_warning("Calling method '%s' on the sound service but it's unknown", method); 
  }
  g_dbus_method_invocation_return_value (invocation, retval);
}

static gboolean sound_service_dbus_blacklist_player (SoundServiceDbus* self,
                                                     gchar* player_name,
                                                     gboolean blacklist) 
{
  gboolean result = FALSE;
  GSettings* our_settings = NULL;
  our_settings  = g_settings_new ("com.canonical.indicators.sound");
  GVariant* the_black_list = g_settings_get_value (our_settings,
                                                   "blacklisted-media-players");
  GVariantIter iter;
  gchar *str;
  // Firstly prep new array which will be set on the key.
  GVariantBuilder builder;
  
  g_variant_iter_init (&iter, the_black_list);
  g_variant_builder_init(&builder, G_VARIANT_TYPE_STRING_ARRAY);  

  while (g_variant_iter_loop (&iter, "s", &str)){
    g_variant_builder_add (&builder, "s", str);
  }
  g_variant_iter_init (&iter, the_black_list);

  if (blacklist == TRUE){
    while (g_variant_iter_loop (&iter, "s", &str)){
      g_print ("first pass to check if %s is present\n", str);
      if (g_strcmp0 (player_name, str) == 0){
        // Return if its already there
        g_debug ("we have this already blacklisted, no need to do anything");
        g_variant_builder_clear (&builder);
        g_object_unref (our_settings);
        g_object_unref (the_black_list);
        return result;
      }
    }
    // Otherwise blacklist it !
    g_debug ("about to blacklist %s", player_name);
    g_variant_builder_add (&builder, "s", player_name);
  }
  else{
    gboolean present = FALSE;
    g_variant_iter_init (&iter, the_black_list);
    g_debug ("attempting to UN-blacklist %s", player_name);
        
    while (g_variant_iter_loop (&iter, "s", &str)){
      if (g_strcmp0 (player_name, str) == 0){      
        present = TRUE;
      }
    }
    // It was not there anyway, return false
    if (present == FALSE){
      g_debug ("it was not blacklisted ?, no need to do anything");
      g_variant_builder_clear (&builder);
      g_object_unref (our_settings);
      g_object_unref (the_black_list);
      return result;
    }
    
    // Otherwise free the builder and reconstruct ensuring no duplicates.
    g_variant_builder_clear (&builder);  
    g_variant_builder_init (&builder, G_VARIANT_TYPE_STRING_ARRAY);  

    g_variant_iter_init (&iter, the_black_list);
    
    while (g_variant_iter_loop (&iter, "s", &str)){
      if (g_strcmp0 (player_name, str) != 0){            
        g_variant_builder_add (&builder, "s", str);
      }
    }
  }
  GVariant* value = g_variant_builder_end (&builder);
  result = g_settings_set_value (our_settings,
                                 "blacklisted-media-players",
                                 value);

  g_object_unref (our_settings);
  g_object_unref (the_black_list);
  
  return result;
}