implement fbd_dev_sound_stop

tracks the FdbFeedbackSounds in a GHashTable in the FdbDevSound

src/fbd-dev-sound.c

@@ -29,6 +29,8 @@
 typedef struct _FbdAsyncData {
   FbdDevSoundPlayedCallback  callback;
   FbdFeedbackSound          *feedback;
+  FbdDevSound               *dev;
+  GCancellable              *playback;
 } FbdAsyncData;
 
 typedef struct _FbdDevSound {
@@ -36,6 +38,7 @@ typedef struct _FbdDevSound {
 
   GSoundContext *ctx;
   GSettings *sound_settings;
+  GHashTable *playbacks;
 } FbdDevSound;
 
 static void initable_iface_init (GInitableIface *iface);
@@ -69,6 +72,29 @@ on_sound_theme_name_changed (FbdDevSound *self,
     g_warning ("Failed to set sound theme name to %s: %s", key, error->message);
 }
 
+static FbdAsyncData*
+fbd_async_data_new (FbdDevSound *dev, FbdFeedbackSound *feedback, FbdDevSoundPlayedCallback callback)
+{
+  FbdAsyncData* data;
+
+  data = g_new0 (FbdAsyncData, 1);
+  data->callback = callback;
+  data->feedback = g_object_ref (feedback);
+  data->dev = g_object_ref (dev);
+  data->playback = g_cancellable_new ();
+
+  return data;
+}
+
+static void
+fbd_async_data_dispose (FbdAsyncData *object)
+{
+  g_object_unref (object->feedback);
+  g_object_unref (object->dev);
+  g_object_unref (object->playback);
+  g_free (object);
+}
+
 static void
 fbd_dev_sound_dispose (GObject *object)
 {
@@ -76,6 +102,7 @@ fbd_dev_sound_dispose (GObject *object)
 
   g_clear_object (&self->ctx);
   g_clear_object (&self->sound_settings);
+  g_clear_object (&self->playbacks);
 
   G_OBJECT_CLASS (fbd_dev_sound_parent_class)->dispose (object);
 }
@@ -88,6 +115,7 @@ initable_init (GInitable     *initable,
   FbdDevSound *self = FBD_DEV_SOUND (initable);
   const char *desktop;
 
+  self->playbacks = g_hash_table_new (g_direct_hash, g_direct_equal);
   self->ctx = gsound_context_new(NULL, error);
   if (!self->ctx)
     return FALSE;
@@ -152,8 +180,9 @@ on_sound_play_finished_callback (GSoundContext *ctx,
   }
 
   (*data->callback)(data->feedback);
-  g_object_unref (data->feedback);
-  g_free (data);
+
+  g_hash_table_remove (data->dev->playbacks, data->feedback);
+  fbd_async_data_dispose (data);
 }
 
 
@@ -165,11 +194,11 @@ fbd_dev_sound_play (FbdDevSound *self, FbdFeedbackSound *feedback, FbdDevSoundPl
   g_return_val_if_fail (FBD_IS_DEV_SOUND (self), FALSE);
   g_return_val_if_fail (GSOUND_IS_CONTEXT (self->ctx), FALSE);
 
-  data = g_new0 (FbdAsyncData, 1);
-  data->callback = callback;
-  data->feedback = g_object_ref (feedback);
+  data = fbd_async_data_new (self, feedback, callback);
 
-  gsound_context_play_full (self->ctx, NULL,
+  g_hash_table_insert (self->playbacks, feedback, data);
+
+  gsound_context_play_full (self->ctx, data->playback,
                             (GAsyncReadyCallback)on_sound_play_finished_callback,
                             data,
                             GSOUND_ATTR_EVENT_ID, fbd_feedback_sound_get_effect (feedback),
@@ -178,3 +207,20 @@ fbd_dev_sound_play (FbdDevSound *self, FbdFeedbackSound *feedback, FbdDevSoundPl
                             NULL);
   return TRUE;
 }
+
+gboolean
+fbd_dev_sound_stop(FbdDevSound *self, FbdFeedbackSound *feedback)
+{
+  FbdAsyncData *data;
+
+  g_return_val_if_fail (FBD_IS_DEV_SOUND (self), FALSE);
+  
+  data = g_hash_table_lookup (self->playbacks, feedback);
+
+  if (data == NULL)
+    return FALSE;
+
+  g_cancellable_cancel (data->playback);
+  
+  return TRUE;
+}

src/fbd-feedback-sound.c

@@ -154,10 +154,3 @@ const char *fbd_feedback_sound_get_effect (FbdFeedbackSound *self)
 {
   return self->effect;
 }
-
-gboolean
-fbd_dev_sound_stop(FbdDevSound *self, FbdFeedbackSound *feedback)
-{
-  /* TODO: can we use cancellable to actually end playback? */
-  return TRUE;
-}