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diff --git a/src/core/kconfigwatcher.h b/src/core/kconfigwatcher.h
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+/*
+ *   Copyright 2018 David Edmundson <davidedmundson@kde.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Library General Public License as
+ *   published by the Free Software Foundation; either version 2, or
+ *   (at your option) any later version.
+ *
+ *   This program 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 General Public License for more details
+ *
+ *   You should have received a copy of the GNU Library General Public
+ *   License along with this program; if not, write to the
+ *   Free Software Foundation, Inc.,
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef KCONFIGWATCHER_H
+#define KCONFIGWATCHER_H
+
+#include <QObject>
+
+#include <KSharedConfig>
+#include <KConfigGroup>
+
+#include <kconfigcore_export.h>
+
+class KConfigWatcherPrivate;
+
+/*
+ * Notifies when another client has updated this config file with the Notify flag set.
+ * @since 5.51
+ */
+class KCONFIGCORE_EXPORT KConfigWatcher: public QObject
+{
+    Q_OBJECT
+public:
+    typedef QSharedPointer<KConfigWatcher> Ptr;
+
+    /*
+     * Instantiate a ConfigWatcher for a given config
+     *
+     * @note any additional config sources should be set before this point.
+     */
+    static Ptr create(const KSharedConfig::Ptr &config);
+
+Q_SIGNALS:
+    /**
+     * Emitted when a config group has changed
+     * The config will be reloaded before this signal is emitted
+     *
+     * @arg group the config group that has changed
+     * @arg names a list of entries that have changed within that group
+     */
+    void configChanged(const KConfigGroup &group, const QByteArrayList &names);
+
+private Q_SLOTS:
+    void onConfigChangeNotification(const QHash<QString, QByteArrayList> &changes);
+
+private:
+    KConfigWatcher(const KSharedConfig::Ptr &config);
+    Q_DISABLE_COPY(KConfigWatcher)
+    KConfigWatcherPrivate *const d;
+};
+
+#endif