/* -*- 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 <oox/ole/axcontrolfragment.hxx>

#include <com/sun/star/io/XInputStream.hpp>

#include <oox/core/xmlfilterbase.hxx>

#include <oox/helper/attributelist.hxx>

#include <oox/helper/binaryinputstream.hxx>

#include <oox/ole/axcontrol.hxx>

#include <oox/ole/olehelper.hxx>

#include <oox/ole/olestorage.hxx>

#include <oox/token/namespaces.hxx>

#include <oox/token/tokens.hxx>

#include <osl/diagnose.h>

namespace oox::ole {

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

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

using ::oox::core::ContextHandler2;

using ::oox::core::ContextHandlerRef;

using ::oox::core::FragmentHandler2;

using ::oox::core::XmlFilterBase;

AxControlPropertyContext::AxControlPropertyContext( FragmentHandler2 const & rFragment, ControlModelBase& rModel ) :

    ContextHandler2( rFragment ),

    mrModel( rModel ),

    mnPropId( XML_TOKEN_INVALID )

{

}

ContextHandlerRef AxControlPropertyContext::onCreateContext( sal_Int32 nElement, const AttributeList& rAttribs )

{

    switch( getCurrentElement() )

    {

        case AX_TOKEN( ocx ):

            if( nElement == AX_TOKEN( ocxPr ) )

            {

                mnPropId = rAttribs.getToken( AX_TOKEN( name ), XML_TOKEN_INVALID );

                switch( mnPropId )

                {

                    case XML_TOKEN_INVALID:

                        return nullptr;

                    case XML_Picture:

                    case XML_MouseIcon:

                        return this;        // import picture path from ax:picture child element

                    default:

                        mrModel.importProperty( mnPropId, rAttribs.getStringDefaulted( AX_TOKEN( value )) );

                }

            }

        break;

        case AX_TOKEN( ocxPr ):

            if( nElement == AX_TOKEN( picture ) )

            {

                OUString aPicturePath = getFragmentPathFromRelId( rAttribs.getStringDefaulted( R_TOKEN( id )) );

                if( !aPicturePath.isEmpty() )

                {

                    BinaryXInputStream aInStrm( getFilter().openInputStream( aPicturePath ), true );

                    mrModel.importPictureData( mnPropId, aInStrm );

                }

            }

        break;

    }

    return nullptr;

}

AxControlFragment::AxControlFragment( XmlFilterBase& rFilter, const OUString& rFragmentPath, EmbeddedControl& rControl ) :

    FragmentHandler2( rFilter, rFragmentPath, true ),

    mrControl( rControl )

{

}

ContextHandlerRef AxControlFragment::onCreateContext( sal_Int32 nElement, const AttributeList& rAttribs )

{

    if( isRootElement() && (nElement == AX_TOKEN( ocx )) )

    {

        OUString aClassId = rAttribs.getStringDefaulted( AX_TOKEN( classid ));

        switch( rAttribs.getToken( AX_TOKEN( persistence ), XML_TOKEN_INVALID ) )

        {

            case XML_persistPropertyBag:

                if( ControlModelBase* pModel = mrControl.createModelFromGuid( aClassId ) )

                    return new AxControlPropertyContext( *this, *pModel );

            break;

            case XML_persistStreamInit:

            {

                OUString aFragmentPath = getFragmentPathFromRelId( rAttribs.getStringDefaulted( R_TOKEN( id )) );

                if( !aFragmentPath.isEmpty() )

                {

                    BinaryXInputStream aInStrm( getFilter().openInputStream( aFragmentPath ), true );

                    if( !aInStrm.isEof() )

                    {

                        // binary stream contains a copy of the class ID, must be equal to attribute value

                        OUString aStrmClassId = OleHelper::importGuid( aInStrm );

                        OSL_ENSURE( aClassId.equalsIgnoreAsciiCase( aStrmClassId ),

                            "AxControlFragment::importBinaryControl - form control class ID mismatch" );

                        if( ControlModelBase* pModel = mrControl.createModelFromGuid( aStrmClassId ) )

                            pModel->importBinaryModel( aInStrm );

                    }

                }

            }

            break;

            case XML_persistStorage:

            {

                OUString aFragmentPath = getFragmentPathFromRelId( rAttribs.getStringDefaulted( R_TOKEN( id )) );

                if( !aFragmentPath.isEmpty() )

                {

                    Reference< XInputStream > xStrgStrm = getFilter().openInputStream( aFragmentPath );

                    if( xStrgStrm.is() )

                    {

                        // Try to import as a parent control

                        bool bImportedAsParent = false;

                        OleStorage aStorage( getFilter().getComponentContext(), xStrgStrm, false );

                        BinaryXInputStream aInStrm( aStorage.openInputStream( u"f"_ustr ), true );

                        if( !aInStrm.isEof() )

                        {

                            if( AxContainerModelBase* pModel = dynamic_cast< AxContainerModelBase* >( mrControl.createModelFromGuid( aClassId ) ) )

                            {

                                pModel->importBinaryModel( aInStrm );

                                bImportedAsParent = true;

                            }

                        }

                        // Import it as a non-parent control

                        if(!bImportedAsParent)

                        {

                            BinaryXInputStream aInStrm2(aStorage.openInputStream(u"contents"_ustr), true);

                            if (!aInStrm2.isEof())

                            {

                                if (ControlModelBase* pModel = mrControl.createModelFromGuid(aClassId))

                                {

                                    pModel->importBinaryModel(aInStrm2);

                                }

                            }

                        }

                    }

                }

            }

            break;

        }

    }

    return nullptr;

}

} // namespace oox::ole

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