diff --git a/src/util/kmodifierkeyinfoprovider_xcb.h b/src/util/kmodifierkeyinfoprovider_xcb.h
@@ -0,0 +1,55 @@
+/*
+    Copyright 2009  Michael Leupold <lemma@confuego.org>
+    Copyright 2013  Martin Gräßlin <mgraesslin@kde.org>
+
+    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) version 3, or any
+    later version accepted by the membership of KDE e.V. (or its
+    successor approved by the membership of KDE e.V.), which shall
+    act as a proxy defined in Section 6 of version 3 of the license.
+
+    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/>.
+*/
+
+#ifndef KMODIFIERKEYINFOPROVIDERXCB_H
+#define KMODIFIERKEYINFOPROVIDERXCB_H
+
+#include "kmodifierkeyinfoprovider_p.h"
+
+class KModifierKeyInfoProviderXcb : public KModifierKeyInfoProvider, public QAbstractNativeEventFilter
+{
+Q_OBJECT
+Q_PLUGIN_METADATA(IID "org.kde.kguiaddons.KModifierKeyInfoProvider.XCB")
+public:
+    KModifierKeyInfoProviderXcb();
+    ~KModifierKeyInfoProviderXcb();
+
+    bool setKeyLatched(Qt::Key key, bool latched) override;
+    bool setKeyLocked(Qt::Key key, bool locked) override;
+
+    bool nativeEventFilter(const QByteArray &eventType, void *message, long int *result) override;
+
+    void xkbUpdateModifierMapping();
+    void xkbModifierStateChanged(unsigned char mods, unsigned char latched_mods,
+                                 unsigned char locked_mods);
+    void xkbButtonStateChanged(unsigned short ptr_buttons);
+
+private:
+    int m_xkbEv;
+    bool m_xkbAvailable;
+
+    // maps a Qt::Key to a modifier mask
+    QHash<Qt::Key, unsigned int> m_xkbModifiers;
+    // maps a Qt::MouseButton to a button mask
+    QHash<Qt::MouseButton, unsigned short> m_xkbButtons;
+};
+
+#endif