[gtk/ebassi/finish-template] Port icon browser to gtk_widget_clear_template()

[Emmanuele Bassi <ebassi src gnome org>]

commit 5f07cea1772361807c24f30e565bb2bcaa8f47ae
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed Jul 6 13:23:23 2022 +0100

    Port icon browser to gtk_widget_clear_template()

 demos/icon-browser/iconbrowserwin.c | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/demos/icon-browser/iconbrowserwin.c b/demos/icon-browser/iconbrowserwin.c
index 4dbc054057..6a130c45a1 100644
--- a/demos/icon-browser/iconbrowserwin.c
+++ b/demos/icon-browser/iconbrowserwin.c
@@ -409,6 +409,14 @@ icon_browser_window_init (IconBrowserWindow *win)
   g_signal_connect (win->context_model, "notify::selected",  G_CALLBACK (selected_name_changed), win);
 }
 
+static void
+icon_browser_window_dispose (GObject *object)
+{
+  gtk_widget_clear_template (GTK_WIDGET (object), ICON_BROWSER_WINDOW_TYPE);
+
+  G_OBJECT_CLASS (icon_browser_window_parent_class)->dispose (object);
+}
+
 static void
 icon_browser_window_finalize (GObject *object)
 {
@@ -424,6 +432,7 @@ icon_browser_window_class_init (IconBrowserWindowClass *class)
 {
   GObjectClass *object_class = G_OBJECT_CLASS (class);
 
+  object_class->dispose = icon_browser_window_dispose;
   object_class->finalize = icon_browser_window_finalize;
 
   g_type_ensure (IB_TYPE_ICON);