Add a GIcon accessor for GvcMixerUIDevices

This will allow to have different icons for internal audio cards
(which are flagged generically as "audio-card"), depending on which
port is in use (ie. headphones or speakers).
This requires the new icon information, which is only exported by
PulseAudio 3.0. If it's not available, we fallback to card icons
like before.

https://bugzilla.gnome.org/show_bug.cgi?id=689931

1 files changed, 64 insertions, 0 deletions

diff --git a/gvc-mixer-ui-device.c b/gvc-mixer-ui-device.c
index a0d6b16..af84442 100644
--- a/gvc-mixer-ui-device.c
+++ b/gvc-mixer-ui-device.c
@@ -32,6 +32,7 @@ struct GvcMixerUIDevicePrivate
 
         GvcMixerCard               *card;
         gchar                      *port_name;
+        char                       *icon_name; 
         gint                        stream_id;
         guint                       id;
         gboolean                    port_available;
@@ -55,12 +56,16 @@ enum
         PROP_STREAM_ID,
         PROP_UI_DEVICE_TYPE,
         PROP_PORT_AVAILABLE,
+        PROP_ICON_NAME,
 };
 
 static void     gvc_mixer_ui_device_class_init (GvcMixerUIDeviceClass *klass);
 static void     gvc_mixer_ui_device_init       (GvcMixerUIDevice      *device);
 static void     gvc_mixer_ui_device_finalize   (GObject               *object);
 
+static void     gvc_mixer_ui_device_set_icon_name (GvcMixerUIDevice *device,
+                                                   const char       *icon_name);
+
 G_DEFINE_TYPE (GvcMixerUIDevice, gvc_mixer_ui_device, G_TYPE_OBJECT);
 
 static guint32
@@ -107,6 +112,9 @@ gvc_mixer_ui_device_get_property  (GObject       *object,
         case PROP_PORT_AVAILABLE:
                 g_value_set_boolean (value, self->priv->port_available);
                 break;
+        case PROP_ICON_NAME:
+                g_value_set_string (value, gvc_mixer_ui_device_get_icon_name (self));
+                break;
         default:
                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
                 break;
@@ -158,6 +166,9 @@ gvc_mixer_ui_device_set_property  (GObject      *object,
                 g_debug ("gvc-mixer-output-set-property - port available %i, value passed in %i \n",
                          self->priv->port_available, g_value_get_boolean (value));
                 break;
+        case PROP_ICON_NAME:
+                gvc_mixer_ui_device_set_icon_name (self, g_value_get_string (value));
+                break;
         default:
                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
                 break;
@@ -197,6 +208,7 @@ gvc_mixer_ui_device_dispose (GObject *object)
         device = GVC_MIXER_UI_DEVICE (object);
 
         g_clear_pointer (&device->priv->port_name, g_free);
+        g_clear_pointer (&device->priv->icon_name, g_free);
         g_clear_pointer (&device->priv->first_line_desc, g_free);
         g_clear_pointer (&device->priv->second_line_desc, g_free);
         g_clear_pointer (&device->priv->profiles, g_list_free);
@@ -274,6 +286,13 @@ gvc_mixer_ui_device_class_init (GvcMixerUIDeviceClass *klass)
                                       G_PARAM_READWRITE);
         g_object_class_install_property (object_class, PROP_PORT_AVAILABLE, pspec);
 
+        pspec = g_param_spec_string ("icon-name",
+                                     "Icon Name",
+                                     "Name of icon to display for this card",
+                                     NULL,
+                                     G_PARAM_READWRITE|G_PARAM_CONSTRUCT);
+        g_object_class_install_property (object_class, PROP_ICON_NAME, pspec);
+
         g_type_class_add_private (klass, sizeof (GvcMixerUIDevicePrivate));
 }
 
@@ -601,6 +620,51 @@ gvc_mixer_ui_device_get_description (GvcMixerUIDevice *device)
         return device->priv->first_line_desc;
 }
 
+const char *
+gvc_mixer_ui_device_get_icon_name (GvcMixerUIDevice *device)
+{
+        g_return_val_if_fail (GVC_IS_MIXER_UI_DEVICE (device), NULL);
+
+        if (device->priv->icon_name)
+                return device->priv->icon_name;
+
+        if (device->priv->card)
+                return gvc_mixer_card_get_icon_name (device->priv->card);
+
+        return NULL;
+}
+
+static void
+gvc_mixer_ui_device_set_icon_name (GvcMixerUIDevice *device,
+                                   const char       *icon_name)
+{
+        g_return_if_fail (GVC_IS_MIXER_UI_DEVICE (device));
+
+        g_free (device->priv->icon_name);
+        device->priv->icon_name = g_strdup (icon_name);
+        g_object_notify (G_OBJECT (device), "icon-name");
+}
+
+
+/**
+ * gvc_mixer_ui_device_get_gicon:
+ * @device:
+ *
+ * Returns: (transfer full):
+ */
+GIcon *
+gvc_mixer_ui_device_get_gicon (GvcMixerUIDevice *device)
+{
+        const char *icon_name;
+
+        icon_name = gvc_mixer_ui_device_get_icon_name (device);
+
+        if (icon_name != NULL)
+                return g_themed_icon_new_with_default_fallbacks (icon_name);
+        else
+                return NULL;
+}
+
 const gchar *
 gvc_mixer_ui_device_get_origin (GvcMixerUIDevice *device)
 {