[gtk+] gtkdemo: Plug leaks in listbox demo

[Timm Bäder <baedert src gnome org>]

commit 7f673122d568b4e31d11ad1fd8a7962075c5fddc
Author: Timm Bäder <mail baedert org>
Date:   Sat Sep 19 19:27:24 2015 +0200

    gtkdemo: Plug leaks in listbox demo

 demos/gtk-demo/listbox.c |   25 +++++++++++++++++++++++++
 1 files changed, 25 insertions(+), 0 deletions(-)
---
diff --git a/demos/gtk-demo/listbox.c b/demos/gtk-demo/listbox.c
index b309e35..1bd3ee0 100644
--- a/demos/gtk-demo/listbox.c
+++ b/demos/gtk-demo/listbox.c
@@ -89,8 +89,22 @@ GType      gtk_message_row_get_type  (void) G_GNUC_CONST;
 G_DEFINE_TYPE (GtkMessage, gtk_message, G_TYPE_OBJECT);
 
 static void
+gtk_message_finalize (GObject *obj)
+{
+  GtkMessage *msg = GTK_MESSAGE (obj);
+
+  g_free (msg->sender_name);
+  g_free (msg->sender_nick);
+  g_free (msg->message);
+  g_free (msg->resent_by);
+
+  G_OBJECT_CLASS (gtk_message_parent_class)->finalize (obj);
+}
+static void
 gtk_message_class_init (GtkMessageClass *klass)
 {
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  object_class->finalize = gtk_message_finalize;
 }
 
 static void
@@ -248,9 +262,20 @@ gtk_message_row_state_flags_changed (GtkWidget    *widget,
 }
 
 static void
+gtk_message_row_finalize (GObject *obj)
+{
+  GtkMessageRowPrivate *priv = GTK_MESSAGE_ROW (obj)->priv;
+  g_object_unref (priv->message);
+  G_OBJECT_CLASS (gtk_message_row_parent_class)->finalize(obj);
+}
+
+static void
 gtk_message_row_class_init (GtkMessageRowClass *klass)
 {
   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = gtk_message_row_finalize;
 
   gtk_widget_class_set_template_from_resource (widget_class, "/listbox/listbox.ui");
   gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, content_label);