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diff --git a/dbaccess/source/core/recovery/subcomponentloader.hxx b/dbaccess/source/core/recovery/subcomponentloader.hxx
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+++ b/dbaccess/source/core/recovery/subcomponentloader.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <com/sun/star/awt/XWindowListener.hpp>
+#include <com/sun/star/frame/XController.hpp>
+#include <com/sun/star/lang/XComponent.hpp>
+#include <com/sun/star/ucb/XCommandProcessor.hpp>
+
+#include <cppuhelper/implbase.hxx>
+
+namespace dbaccess
+{
+
+    // SubComponentLoader
+    typedef ::cppu::WeakImplHelper<   css::awt::XWindowListener
+                                  >   SubComponentLoader_Base;
+    /** is a helper class which loads/opens a given sub component as soon as the main application
+        window becomes visible.
+    */
+    class SubComponentLoader : public SubComponentLoader_Base
+    {
+    public:
+        SubComponentLoader(
+            const css::uno::Reference< css::frame::XController >& i_rApplicationController,
+            const css::uno::Reference< css::ucb::XCommandProcessor >& i_rSubDocumentDefinition
+        );
+
+        SubComponentLoader(
+            const css::uno::Reference< css::frame::XController >& i_rApplicationController,
+            const css::uno::Reference< css::lang::XComponent >& i_rNonDocumentComponent
+        );
+
+        // XWindowListener
+        virtual void SAL_CALL windowResized( const css::awt::WindowEvent& e ) override;
+        virtual void SAL_CALL windowMoved( const css::awt::WindowEvent& e ) override;
+        virtual void SAL_CALL windowShown( const css::lang::EventObject& e ) override;
+        virtual void SAL_CALL windowHidden( const css::lang::EventObject& e ) override;
+
+        // XEventListener
+        virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
+
+    protected:
+        virtual ~SubComponentLoader() override;
+
+    private:
+        const css::uno::Reference< css::ucb::XCommandProcessor >  mxDocDefCommands;
+        const css::uno::Reference< css::lang::XComponent >        mxNonDocComponent;
+        css::uno::Reference< css::awt::XWindow >                  mxAppComponentWindow;
+    };
+
+} // namespace dbaccess
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */