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diff --git a/src/plugins/shellintegration/xdg-shell-v6/qwaylandxdgshellv6_p.h b/src/plugins/shellintegration/xdg-shell-v6/qwaylandxdgshellv6_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Copyright (C) 2017 Eurogiciel, author: <philippe.coval@eurogiciel.fr>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the config.tests of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWAYLANDXDGSHELLV6_H
+#define QWAYLANDXDGSHELLV6_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qwayland-xdg-shell-unstable-v6.h"
+
+#include <QtWaylandClient/qtwaylandclientglobal.h>
+#include <QtWaylandClient/private/qwaylandshellsurface_p.h>
+
+#include <QtCore/QSize>
+#include <QtGui/QRegion>
+
+#include <wayland-client.h>
+
+QT_BEGIN_NAMESPACE
+
+class QWindow;
+
+namespace QtWaylandClient {
+
+class QWaylandWindow;
+class QWaylandInputDevice;
+class QWaylandXdgShellV6;
+
+class Q_WAYLAND_CLIENT_EXPORT QWaylandXdgSurfaceV6 : public QWaylandShellSurface, public QtWayland::zxdg_surface_v6
+{
+    Q_OBJECT
+public:
+    QWaylandXdgSurfaceV6(QWaylandXdgShellV6 *shell, ::zxdg_surface_v6 *surface, QWaylandWindow *window);
+    ~QWaylandXdgSurfaceV6() override;
+
+    void resize(QWaylandInputDevice *inputDevice, enum zxdg_toplevel_v6_resize_edge edges);
+    void resize(QWaylandInputDevice *inputDevice, enum wl_shell_surface_resize edges) override;
+    bool move(QWaylandInputDevice *inputDevice) override;
+    void setTitle(const QString &title) override;
+    void setAppId(const QString &appId) override;
+
+    void setType(Qt::WindowType type, QWaylandWindow *transientParent) override;
+    bool handleExpose(const QRegion &) override;
+    bool handlesActiveState() const { return m_toplevel; }
+    void applyConfigure() override;
+    bool wantsDecorations() const override;
+
+protected:
+    void requestWindowStates(Qt::WindowStates states) override;
+    void zxdg_surface_v6_configure(uint32_t serial) override;
+
+private:
+    class Toplevel: public QtWayland::zxdg_toplevel_v6
+    {
+    public:
+        Toplevel(QWaylandXdgSurfaceV6 *xdgSurface);
+        ~Toplevel() override;
+
+        void applyConfigure();
+
+        void zxdg_toplevel_v6_configure(int32_t width, int32_t height, wl_array *states) override;
+        void zxdg_toplevel_v6_close() override;
+
+        void requestWindowStates(Qt::WindowStates states);
+        struct {
+            QSize size = {0, 0};
+            Qt::WindowStates states = Qt::WindowNoState;
+        }  m_pending, m_applied;
+        QSize m_normalSize;
+
+        QWaylandXdgSurfaceV6 *m_xdgSurface = nullptr;
+    };
+
+    class Popup : public QtWayland::zxdg_popup_v6 {
+    public:
+        Popup(QWaylandXdgSurfaceV6 *xdgSurface, QWaylandXdgSurfaceV6 *parent, QtWayland::zxdg_positioner_v6 *positioner);
+        ~Popup() override;
+
+        void applyConfigure();
+        void zxdg_popup_v6_popup_done() override;
+
+        QWaylandXdgSurfaceV6 *m_xdgSurface = nullptr;
+    };
+
+    void setToplevel();
+    void setPopup(QWaylandWindow *parent, QWaylandInputDevice *device, int serial, bool grab);
+
+    QWaylandXdgShellV6 *m_shell = nullptr;
+    QWaylandWindow *m_window = nullptr;
+    Toplevel *m_toplevel = nullptr;
+    Popup *m_popup = nullptr;
+    bool m_configured = false;
+    QRegion m_exposeRegion;
+    uint m_pendingConfigureSerial = 0;
+};
+
+class Q_WAYLAND_CLIENT_EXPORT QWaylandXdgShellV6 : public QtWayland::zxdg_shell_v6
+{
+public:
+    QWaylandXdgShellV6(struct ::wl_registry *registry, uint32_t id, uint32_t availableVersion);
+
+    QWaylandXdgSurfaceV6 *getXdgSurface(QWaylandWindow *window);
+
+    ~QWaylandXdgShellV6() override;
+
+private:
+    void zxdg_shell_v6_ping(uint32_t serial) override;
+};
+
+QT_END_NAMESPACE
+
+}
+
+#endif // QWAYLANDXDGSHELLV6_H