[gtk+/wip/matthiasc/gadget] spinner: Don't leak the gadget

[Matthias Clasen <matthiasc src gnome org>]

commit 2507834ddddbbcf047f3a4940cf21f2ecd6398ec
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Nov 26 20:50:25 2015 -0500

    spinner: Don't leak the gadget

 gtk/gtkspinner.c |   24 ++++++++++++++++++------
 1 files changed, 18 insertions(+), 6 deletions(-)
---
diff --git a/gtk/gtkspinner.c b/gtk/gtkspinner.c
index 0b0485c..d6d6bd3 100644
--- a/gtk/gtkspinner.c
+++ b/gtk/gtkspinner.c
@@ -71,10 +71,7 @@ struct _GtkSpinnerPrivate
   gboolean active;
 };
 
-static gboolean gtk_spinner_draw       (GtkWidget       *widget,
-                                        cairo_t         *cr);
-static void gtk_spinner_size_allocate  (GtkWidget       *widget,
-                                        GtkAllocation   *allocation);
+static void gtk_spinner_finalize       (GObject         *object);
 static void gtk_spinner_get_property   (GObject         *object,
                                         guint            param_id,
                                         GValue          *value,
@@ -83,14 +80,18 @@ static void gtk_spinner_set_property   (GObject         *object,
                                         guint            param_id,
                                         const GValue    *value,
                                         GParamSpec      *pspec);
-static void gtk_spinner_set_active     (GtkSpinner      *spinner,
-                                        gboolean         active);
+static gboolean gtk_spinner_draw       (GtkWidget       *widget,
+                                        cairo_t         *cr);
+static void gtk_spinner_size_allocate  (GtkWidget       *widget,
+                                        GtkAllocation   *allocation);
 static void gtk_spinner_get_preferred_width (GtkWidget  *widget,
                                         gint            *minimum_size,
                                         gint            *natural_size);
 static void gtk_spinner_get_preferred_height (GtkWidget *widget,
                                         gint            *minimum_size,
                                         gint            *natural_size);
+static void gtk_spinner_set_active     (GtkSpinner      *spinner,
+                                        gboolean         active);
 
 static void     gtk_spinner_get_content_size  (GtkCssGadget        *gadget,
                                                GtkOrientation       orientation,
@@ -122,6 +123,7 @@ gtk_spinner_class_init (GtkSpinnerClass *klass)
   GtkWidgetClass *widget_class;
 
   gobject_class = G_OBJECT_CLASS(klass);
+  gobject_class->finalize = gtk_spinner_finalize;
   gobject_class->get_property = gtk_spinner_get_property;
   gobject_class->set_property = gtk_spinner_set_property;
 
@@ -205,6 +207,16 @@ gtk_spinner_init (GtkSpinner *spinner)
 }
 
 static void
+gtk_spinner_finalize (GObject *object)
+{
+  GtkSpinner *spinner = GTK_SPINNER (object);
+
+  g_clear_object (&spinner->priv->gadget);
+
+  G_OBJECT_CLASS (gtk_spinner_parent_class)->finalize (object);
+}
+
+static void
 gtk_spinner_get_content_size (GtkCssGadget   *gadget,
                               GtkOrientation  orientation,
                               gint            for_size,