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diff --git a/desktop/source/lib/lokclipboard.hxx b/desktop/source/lib/lokclipboard.hxx
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+++ b/desktop/source/lib/lokclipboard.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/.
+ */
+
+#ifndef INCLUDED_DESKTOP_SOURCE_LIB_LOKCLIPBOARD_HXX
+#define INCLUDED_DESKTOP_SOURCE_LIB_LOKCLIPBOARD_HXX
+
+#include <vector>
+
+#include <rtl/ref.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XSingleServiceFactory.hpp>
+#include <com/sun/star/datatransfer/clipboard/XSystemClipboard.hpp>
+
+using namespace css::uno;
+
+/// A clipboard implementation for LibreOfficeKit.
+class LOKClipboard final
+    : public cppu::WeakComponentImplHelper<css::datatransfer::clipboard::XSystemClipboard,
+                                           css::lang::XServiceInfo>
+{
+    osl::Mutex m_aMutex;
+    css::uno::Reference<css::datatransfer::XTransferable> m_xTransferable;
+    css::uno::Reference<css::datatransfer::clipboard::XClipboardOwner> m_aOwner;
+    std::vector<css::uno::Reference<css::datatransfer::clipboard::XClipboardListener>> m_aListeners;
+
+public:
+    LOKClipboard();
+
+    /// get an XInterface easily.
+    css::uno::Reference<css::uno::XInterface> getXI()
+    {
+        return css::uno::Reference<css::uno::XInterface>(static_cast<cppu::OWeakObject*>(this));
+    }
+
+    // XServiceInfo
+    OUString SAL_CALL getImplementationName() override;
+    sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
+    Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
+    static Sequence<OUString> getSupportedServiceNames_static();
+
+    // XClipboard
+    css::uno::Reference<css::datatransfer::XTransferable> SAL_CALL getContents() override;
+    void SAL_CALL setContents(
+        const css::uno::Reference<css::datatransfer::XTransferable>& xTransferable,
+        const css::uno::Reference<css::datatransfer::clipboard::XClipboardOwner>& xClipboardOwner)
+        override;
+    OUString SAL_CALL getName() override { return "CLIPBOARD"; }
+
+    // XClipboardEx
+    sal_Int8 SAL_CALL getRenderingCapabilities() override { return 0; }
+
+    // XClipboardNotifier
+    void SAL_CALL addClipboardListener(
+        const css::uno::Reference<css::datatransfer::clipboard::XClipboardListener>& listener)
+        override;
+    void SAL_CALL removeClipboardListener(
+        const css::uno::Reference<css::datatransfer::clipboard::XClipboardListener>& listener)
+        override;
+};
+
+/// Represents the contents of LOKClipboard.
+class LOKTransferable : public cppu::WeakImplHelper<css::datatransfer::XTransferable>
+{
+    css::uno::Sequence<css::datatransfer::DataFlavor> m_aFlavors;
+    std::vector<css::uno::Any> m_aContent;
+
+    static void initFlavourFromMime(css::datatransfer::DataFlavor& rFlavor, OUString aMimeType);
+
+public:
+    LOKTransferable();
+    LOKTransferable(size_t nInCount, const char** pInMimeTypes, const size_t* pInSizes,
+                    const char** pInStreams);
+    LOKTransferable(const OUString& sMimeType, const css::uno::Sequence<sal_Int8>& aSequence);
+
+    css::uno::Any SAL_CALL getTransferData(const css::datatransfer::DataFlavor& rFlavor) override;
+
+    css::uno::Sequence<css::datatransfer::DataFlavor> SAL_CALL getTransferDataFlavors() override;
+
+    sal_Bool SAL_CALL isDataFlavorSupported(const css::datatransfer::DataFlavor& rFlavor) override;
+};
+
+/// Theoretically to hook into the (horrible) vcl dtranscomp.cxx code.
+class LOKClipboardFactory : public ::cppu::WeakComponentImplHelper<css::lang::XSingleServiceFactory>
+{
+    static osl::Mutex gMutex;
+
+public:
+    LOKClipboardFactory()
+        : cppu::WeakComponentImplHelper<css::lang::XSingleServiceFactory>(gMutex)
+    {
+    }
+
+    css::uno::Reference<css::uno::XInterface> SAL_CALL createInstance() override
+    {
+        return createInstanceWithArguments(css::uno::Sequence<css::uno::Any>());
+    }
+    css::uno::Reference<css::uno::XInterface> SAL_CALL
+    createInstanceWithArguments(const css::uno::Sequence<css::uno::Any>& /* rArgs */) override;
+
+    /// Fetch clipboard from the global pool.
+    static rtl::Reference<LOKClipboard> getClipboardForCurView();
+
+    /// Release a clipboard before its document dies, nViewId of -1 clears all.
+    static void releaseClipboardForView(int nViewId);
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */