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/*
* Copyright © 2025 Igalia S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Georges Basile Stavracas Neto <feaneron@igalia.com>
*/
#pragma once
#include "gtkfilter.h"
#include <gtk/gtkexpression.h>
G_BEGIN_DECLS
/*<private>
* GtkFilterWatchCallback:
* @item: (type GObject): the item to be watched
* @user_data: user data
*
* User function that is called @item changes while being watches.
*
* Since: 4.20
*/
typedef void (*GtkFilterWatchCallback) (gpointer item,
gpointer user_data);
typedef struct _GtkFilterClassPrivate
{
/* private vfuncs */
gpointer (* watch) (GtkFilter *self,
gpointer item,
GtkFilterWatchCallback watch_func,
gpointer user_data,
GDestroyNotify destroy);
void (* unwatch) (GtkFilter *self,
gpointer watch);
} GtkFilterClassPrivate;
gpointer gtk_filter_watch (GtkFilter *self,
gpointer item,
GtkFilterWatchCallback watch_func,
gpointer user_data,
GDestroyNotify destroy);
void gtk_filter_unwatch (GtkFilter *self,
gpointer watch);
G_END_DECLS
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