[gtk/wip/matthiasc/listview-fixups: 2/15] customfiler: Add long description

[Matthias Clasen <matthiasc src gnome org>]

commit 24cfd3659ab36d4d5eb467e3463da13edd9c6b61
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Dec 12 19:01:02 2019 -0500

    customfiler: Add long description

 gtk/gtkcustomfilter.c | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/gtk/gtkcustomfilter.c b/gtk/gtkcustomfilter.c
index 1166aae82e..d2ec8dc23a 100644
--- a/gtk/gtkcustomfilter.c
+++ b/gtk/gtkcustomfilter.c
@@ -24,6 +24,14 @@
 #include "gtkintl.h"
 #include "gtktypebuiltins.h"
 
+/**
+ * SECTION:gtkcustomfilter
+ * @Title: GtkCustomFilter
+ * @Short_description: Filtering with callbacks
+ *
+ * #GtkCustomFilter is a #GtkFilter that uses a callback to determine whether
+ * to include an item or not.
+ */
 struct _GtkCustomFilter
 {
   GtkFilter parent_instance;