[gnome-bluetooth] lib: Add "device-removed" signal

[Bastien Nocera <hadess src gnome org>]

commit 574ee78e47e8244bf0876346ab9be9d6583e9ca9
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Dec 5 16:28:52 2013 +0100

    lib: Add "device-removed" signal
    
    This allows us to easily identify devices that were removed,
    which listening to the model's row-deleted doesn't allow us to do.

 lib/bluetooth-client.c |   28 +++++++++++++++++++++++++++-
 1 files changed, 27 insertions(+), 1 deletions(-)
---
diff --git a/lib/bluetooth-client.c b/lib/bluetooth-client.c
index 6290d83..d83c8d6 100644
--- a/lib/bluetooth-client.c
+++ b/lib/bluetooth-client.c
@@ -75,6 +75,13 @@ enum {
        PROP_DEFAULT_ADAPTER_DISCOVERING
 };
 
+enum {
+       DEVICE_REMOVED,
+       LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
 static const char *connectable_uuids[] = {
        "HSP",
        "AudioSource",
@@ -430,8 +437,10 @@ device_removed (const char      *path,
        BluetoothClientPrivate *priv = BLUETOOTH_CLIENT_GET_PRIVATE(client);
        GtkTreeIter iter;
 
-       if (get_iter_from_path(priv->store, &iter, path) == TRUE)
+       if (get_iter_from_path(priv->store, &iter, path) == TRUE) {
+               g_signal_emit (G_OBJECT (client), signals[DEVICE_REMOVED], 0, path);
                gtk_tree_store_remove(priv->store, &iter);
+       }
 }
 
 static void
@@ -1130,6 +1139,23 @@ static void bluetooth_client_class_init(BluetoothClientClass *klass)
        object_class->set_property = bluetooth_client_set_property;
 
        /**
+        * BluetoothClient::device-removed:
+        * @client: a #BluetoothClient object which received the signal
+        * @device: the D-Bus object path for the now-removed device
+        *
+        * The #BluetoothClient::device-removed signal is launched when a
+        * device gets removed from the model.
+        **/
+       signals[DEVICE_REMOVED] =
+               g_signal_new ("device-removed",
+                             G_TYPE_FROM_CLASS (klass),
+                             G_SIGNAL_RUN_LAST,
+                             0,
+                             NULL, NULL,
+                             g_cclosure_marshal_VOID__STRING,
+                             G_TYPE_NONE, 1, G_TYPE_STRING);
+
+       /**
         * BluetoothClient:default-adapter:
         *
         * The D-Bus path of the default Bluetooth adapter or %NULL.