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diff --git a/src/plugins/platformthemes/gtk3/qgtk3menu.h b/src/plugins/platformthemes/gtk3/qgtk3menu.h
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+++ b/src/plugins/platformthemes/gtk3/qgtk3menu.h
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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QGTK3MENU_H
+#define QGTK3MENU_H
+
+#include <QtGui/qpa/qplatformmenu.h>
+
+typedef struct _GtkWidget GtkWidget;
+typedef struct _GtkMenuItem GtkMenuItem;
+typedef struct _GtkCheckMenuItem GtkCheckMenuItem;
+
+QT_BEGIN_NAMESPACE
+
+class QGtk3Menu;
+
+class QGtk3MenuItem: public QPlatformMenuItem
+{
+public:
+    QGtk3MenuItem();
+    ~QGtk3MenuItem();
+
+    bool isInvalid() const;
+
+    GtkWidget *create();
+    GtkWidget *handle() const;
+
+    quintptr tag() const;
+    void setTag(quintptr tag) override;
+
+    QString text() const;
+    void setText(const QString &text) override;
+
+    QGtk3Menu *menu() const;
+    void setMenu(QPlatformMenu *menu) override;
+
+    bool isVisible() const;
+    void setVisible(bool visible) override;
+
+    bool isSeparator() const;
+    void setIsSeparator(bool separator) override;
+
+    bool isCheckable() const;
+    void setCheckable(bool checkable) override;
+
+    bool isChecked() const;
+    void setChecked(bool checked) override;
+
+    QKeySequence shortcut() const;
+    void setShortcut(const QKeySequence &shortcut) override;
+
+    bool isEnabled() const;
+    void setEnabled(bool enabled) override;
+
+    bool hasExclusiveGroup() const;
+    void setHasExclusiveGroup(bool exclusive) override;
+
+    void setRole(MenuRole role) override { Q_UNUSED(role); }
+    void setFont(const QFont &font) override { Q_UNUSED(font); }
+    void setIcon(const QIcon &icon) override { Q_UNUSED(icon); }
+    void setIconSize(int size) override { Q_UNUSED(size); }
+
+protected:
+    static void onSelect(GtkMenuItem *item, void *data);
+    static void onActivate(GtkMenuItem *item, void *data);
+    static void onToggle(GtkCheckMenuItem *item, void *data);
+
+private:
+    bool m_visible;
+    bool m_separator;
+    bool m_checkable;
+    bool m_checked;
+    bool m_enabled;
+    bool m_exclusive;
+    bool m_underline;
+    bool m_invalid;
+    quintptr m_tag;
+    QGtk3Menu *m_menu;
+    GtkWidget *m_item;
+    QString m_text;
+    QKeySequence m_shortcut;
+};
+
+class QGtk3Menu : public QPlatformMenu
+{
+    Q_OBJECT
+
+public:
+    QGtk3Menu();
+    ~QGtk3Menu();
+
+    GtkWidget *handle() const;
+
+    void insertMenuItem(QPlatformMenuItem *item, QPlatformMenuItem *before) override;
+    void removeMenuItem(QPlatformMenuItem *item) override;
+    void syncMenuItem(QPlatformMenuItem *item) override;
+    void syncSeparatorsCollapsible(bool enable) override;
+
+    quintptr tag() const override;
+    void setTag(quintptr tag) override;
+
+    void setEnabled(bool enabled) override;
+    void setVisible(bool visible) override;
+
+    void setIcon(const QIcon &icon) override { Q_UNUSED(icon); }
+    void setText(const QString &text) override { Q_UNUSED(text); }
+
+    QPoint targetPos() const;
+
+    void showPopup(const QWindow *parentWindow, const QRect &targetRect, const QPlatformMenuItem *item) override;
+    void dismiss() override;
+
+    QPlatformMenuItem *menuItemAt(int position) const override;
+    QPlatformMenuItem *menuItemForTag(quintptr tag) const override;
+
+    QPlatformMenuItem *createMenuItem() const override;
+    QPlatformMenu *createSubMenu() const override;
+
+protected:
+    static void onShow(GtkWidget *menu, void *data);
+    static void onHide(GtkWidget *menu, void *data);
+
+private:
+    quintptr m_tag;
+    GtkWidget *m_menu;
+    QPoint m_targetPos;
+    QVector<QGtk3MenuItem *> m_items;
+};
+
+QT_END_NAMESPACE
+
+#endif // QGTK3MENU_H