/* -*- 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 .

 */

#include <com/sun/star/embed/Aspects.hpp>

#include <com/sun/star/embed/EmbedStates.hpp>

#include <com/sun/star/embed/WrongStateException.hpp>

#include <com/sun/star/datatransfer/XTransferable.hpp>

#include <com/sun/star/uno/Sequence.hxx>

#include <com/sun/star/lang/DisposedException.hpp>

#include <commonembobj.hxx>

#include <sal/log.hxx>

using namespace ::com::sun::star;

void SAL_CALL OCommonEmbeddedObject::setVisualAreaSize( sal_Int64 nAspect, const awt::Size& aSize )

{

    ::osl::MutexGuard aGuard( m_aMutex );

    if ( m_bDisposed )

        throw lang::DisposedException(); // TODO

    SAL_WARN_IF( nAspect == embed::Aspects::MSOLE_ICON, "embeddedobj.common", "For iconified objects no graphical replacement is required!" );

    if ( nAspect == embed::Aspects::MSOLE_ICON )

        // no representation can be retrieved

        throw embed::WrongStateException( u"Illegal call!"_ustr,

                                    static_cast< ::cppu::OWeakObject* >(this) );

    if ( m_nObjectState == -1 )

        throw embed::WrongStateException( u"The own object has no persistence!"_ustr,

                                    static_cast< ::cppu::OWeakObject* >(this) );

    m_bHasClonedSize = false;

    bool bBackToLoaded = false;

    if ( m_nObjectState == embed::EmbedStates::LOADED )

    {

        changeState( embed::EmbedStates::RUNNING );

        // the links should be switched back to loaded state for now to avoid locking problems

        bBackToLoaded = m_bIsLinkURL;

    }

    bool bSuccess = m_xDocHolder->SetExtent( nAspect, aSize );

    if ( bBackToLoaded )

        changeState( embed::EmbedStates::LOADED );

    if ( !bSuccess )

        throw uno::Exception(u"SetExtent failed"_ustr, nullptr); // TODO:

}

awt::Size SAL_CALL OCommonEmbeddedObject::getVisualAreaSize( sal_Int64 nAspect )

{

    ::osl::MutexGuard aGuard( m_aMutex );

    if ( m_bDisposed )

        throw lang::DisposedException(); // TODO

    if ( m_nObjectState == -1 )

        throw embed::WrongStateException( u"The own object has no persistence!"_ustr,

                                    static_cast< ::cppu::OWeakObject* >(this) );

    SAL_WARN_IF( nAspect == embed::Aspects::MSOLE_ICON, "embeddedobj.common", "For iconified objects no graphical replacement is required!" );

    if ( m_bHasClonedSize )

        return m_aClonedSize;

    bool bBackToLoaded = false;

    if ( m_nObjectState == embed::EmbedStates::LOADED )

    {

        changeState( embed::EmbedStates::RUNNING );

        // the links should be switched back to loaded state for now to avoid locking problems

        bBackToLoaded = m_bIsLinkURL;

    }

    awt::Size aResult;

    bool bSuccess = m_xDocHolder->GetExtent( nAspect, &aResult );

    if ( bBackToLoaded )

        changeState( embed::EmbedStates::LOADED );

    if ( !bSuccess )

        throw uno::Exception(u"GetExtent failed"_ustr, nullptr); // TODO:

    return aResult;

}

sal_Int32 SAL_CALL OCommonEmbeddedObject::getMapUnit( sal_Int64 nAspect )

{

    ::osl::MutexGuard aGuard( m_aMutex );

    if ( m_bDisposed )

        throw lang::DisposedException(); // TODO

    SAL_WARN_IF( nAspect == embed::Aspects::MSOLE_ICON, "embeddedobj.common", "For iconified objects no graphical replacement is required!" );

    if ( nAspect == embed::Aspects::MSOLE_ICON )

        // no representation can be retrieved

        throw embed::WrongStateException( u"Illegal call!"_ustr,

                                    static_cast< ::cppu::OWeakObject* >(this) );

    if ( m_nObjectState == -1 )

        throw embed::WrongStateException( u"The own object has no persistence!"_ustr,

                                    static_cast< ::cppu::OWeakObject* >(this) );

    if ( m_bHasClonedSize )

        return m_nClonedMapUnit;

    bool bBackToLoaded = false;

    if ( m_nObjectState == embed::EmbedStates::LOADED )

    {

        changeState( embed::EmbedStates::RUNNING );

        // the links should be switched back to loaded state for now to avoid locking problems

        bBackToLoaded = m_bIsLinkURL;

    }

    sal_Int32 nResult = m_xDocHolder->GetMapUnit( nAspect );

    if ( bBackToLoaded )

        changeState( embed::EmbedStates::LOADED );

    if ( nResult < 0  )

        throw uno::Exception("result " + OUString::number(nResult), nullptr); // TODO:

    return nResult;

}

embed::VisualRepresentation SAL_CALL OCommonEmbeddedObject::getPreferredVisualRepresentation( sal_Int64 nAspect )

{

    ::osl::MutexGuard aGuard( m_aMutex );

    if ( m_bDisposed )

        throw lang::DisposedException(); // TODO

    if ( m_nObjectState == -1 )

        throw embed::WrongStateException( u"The own object has no persistence!"_ustr,

                                    static_cast< ::cppu::OWeakObject* >(this) );

    SAL_WARN_IF( nAspect == embed::Aspects::MSOLE_ICON, "embeddedobj.common", "For iconified objects no graphical replacement is required!" );

    if ( nAspect == embed::Aspects::MSOLE_ICON )

        // no representation can be retrieved

        throw embed::WrongStateException( u"Illegal call!"_ustr,

                                    static_cast< ::cppu::OWeakObject* >(this) );

    bool bBackToLoaded = false;

    if ( m_nObjectState == embed::EmbedStates::LOADED )

    {

        // restore original VisualAreaSize, because writer objects set

        // themselves to a default size OLESIZE

        awt::Size aOrigSize = getVisualAreaSize(nAspect);

        changeState(embed::EmbedStates::RUNNING);

        const bool bIsChart = GetDocumentServiceName() == "com.sun.star.chart2.ChartDocument";

        // tdf#108643 unless it's a chart, cause those are weird (#i103460#)

        if (!bIsChart && aOrigSize != getVisualAreaSize(nAspect))

            setVisualAreaSize(nAspect, aOrigSize);

        // the links should be switched back to loaded state for now to avoid locking problems

        bBackToLoaded = m_bIsLinkURL;

    }

    SAL_WARN_IF( !m_xDocHolder->GetComponent().is(), "embeddedobj.common", "Running or Active object has no component!" );

    // TODO: return for the aspect of the document

    embed::VisualRepresentation aVisualRepresentation;

    uno::Reference< embed::XVisualObject > xVisualObject( m_xDocHolder->GetComponent(), uno::UNO_QUERY );

    if( xVisualObject.is())

    {

        aVisualRepresentation = xVisualObject->getPreferredVisualRepresentation( nAspect );

    }

    else

    {

        uno::Reference< datatransfer::XTransferable > xTransferable( m_xDocHolder->GetComponent(), uno::UNO_QUERY_THROW );

        datatransfer::DataFlavor aDataFlavor(

                u"application/x-openoffice-gdimetafile;windows_formatname=\"GDIMetaFile\""_ustr,

                u"GDIMetaFile"_ustr,

                cppu::UnoType<uno::Sequence< sal_Int8 >>::get() );

        if( !xTransferable->isDataFlavorSupported( aDataFlavor ))

            throw uno::RuntimeException();

        aVisualRepresentation.Data = xTransferable->getTransferData( aDataFlavor );

        aVisualRepresentation.Flavor = std::move(aDataFlavor);

    }

    if ( bBackToLoaded )

        changeState( embed::EmbedStates::LOADED );

    return aVisualRepresentation;

}

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