/* -*- 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/.

 */

#pragma once

#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 { 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 u"CLIPBOARD"_ustr; }

    // 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);

};

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */