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diff --git a/desktop/source/deployment/manager/dp_commandenvironments.hxx b/desktop/source/deployment/manager/dp_commandenvironments.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 .
+ */
+
+#ifndef INCLUDED_DESKTOP_SOURCE_DEPLOYMENT_MANAGER_DP_COMMANDENVIRONMENTS_HXX
+#define INCLUDED_DESKTOP_SOURCE_DEPLOYMENT_MANAGER_DP_COMMANDENVIRONMENTS_HXX
+
+#include <cppuhelper/implbase.hxx>
+#include <com/sun/star/task/XInteractionHandler.hpp>
+#include <com/sun/star/task/XInteractionRequest.hpp>
+#include <com/sun/star/ucb/XProgressHandler.hpp>
+#include <com/sun/star/ucb/XCommandEnvironment.hpp>
+
+
+namespace dp_manager {
+
+/**
+   This command environment is to be used when an extension is temporarily
+   stored in the "tmp" repository. It prevents all kind of user interaction.
+ */
+class BaseCommandEnv
+    : public ::cppu::WeakImplHelper< css::ucb::XCommandEnvironment,
+                                      css::task::XInteractionHandler,
+                                      css::ucb::XProgressHandler >
+{
+    css::uno::Reference< css::task::XInteractionHandler> m_forwardHandler;
+protected:
+    void handle_(bool approve,
+                 css::uno::Reference< css::task::XInteractionRequest> const & xRequest );
+public:
+    virtual ~BaseCommandEnv() override;
+    BaseCommandEnv();
+    explicit BaseCommandEnv(
+        css::uno::Reference< css::task::XInteractionHandler> const & handler);
+
+    // XCommandEnvironment
+    virtual css::uno::Reference<css::task::XInteractionHandler > SAL_CALL
+    getInteractionHandler() override;
+    virtual css::uno::Reference<css::ucb::XProgressHandler >
+    SAL_CALL getProgressHandler() override;
+
+    // XInteractionHandler
+    virtual void SAL_CALL handle(
+        css::uno::Reference<css::task::XInteractionRequest > const & xRequest ) override;
+
+    // XProgressHandler
+    virtual void SAL_CALL push( css::uno::Any const & Status ) override;
+    virtual void SAL_CALL update( css::uno::Any const & Status ) override;
+    virtual void SAL_CALL pop() override;
+};
+
+class TmpRepositoryCommandEnv : public BaseCommandEnv
+{
+public:
+    TmpRepositoryCommandEnv();
+    explicit TmpRepositoryCommandEnv(css::uno::Reference< css::task::XInteractionHandler> const & handler);
+
+// XInteractionHandler
+    virtual void SAL_CALL handle(
+        css::uno::Reference<css::task::XInteractionRequest > const & xRequest ) override;
+
+};
+
+/** this class is for use in XPackageManager::synchronize.
+
+    It handles particular license cases.
+ */
+class LicenseCommandEnv : public BaseCommandEnv
+{
+private:
+    OUString m_repository;
+    bool m_bSuppressLicense;
+public:
+    LicenseCommandEnv(
+        css::uno::Reference< css::task::XInteractionHandler> const & handler,
+        bool bSuppressLicense,
+        OUString const & repository);
+
+// XInteractionHandler
+    virtual void SAL_CALL handle(
+        css::uno::Reference<css::task::XInteractionRequest > const & xRequest ) override;
+
+};
+
+/** this class is for use in XPackageManager::checkPrerequisites
+
+    It always prohibits a license interaction
+ */
+class NoLicenseCommandEnv : public BaseCommandEnv
+{
+
+public:
+    explicit NoLicenseCommandEnv(css::uno::Reference< css::task::XInteractionHandler> const & handler);
+
+// XInteractionHandler
+    virtual void SAL_CALL handle(
+        css::uno::Reference<css::task::XInteractionRequest > const & xRequest ) override;
+
+};
+
+/* For use in XExtensionManager::addExtension in the call to
+   XPackage::checkPrerequisites
+   It prevents all user interactions. The license is always accepted.
+   It remembers if there was a platform or a dependency exception in
+   the member m_bException. if there was any other exception then m_bUnknownException
+   is set.
+
+ */
+class SilentCheckPrerequisitesCommandEnv : public BaseCommandEnv
+{
+public:
+    SilentCheckPrerequisitesCommandEnv();
+    // XInteractionHandler
+    virtual void SAL_CALL handle(
+        css::uno::Reference<css::task::XInteractionRequest > const & xRequest ) override;
+
+    // Set to true if a PlatformException or a DependencyException were handled.
+    css::uno::Any m_Exception;
+    // Set to true if an unknown exception was handled.
+    css::uno::Any m_UnknownException;
+};
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */