/* -*- 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 <tools/debug.hxx>

#include <tools/urlobj.hxx>

#include <com/sun/star/uno/Reference.h>

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

#include <com/sun/star/ui/dialogs/CommonFilePickerElementIds.hpp>

#include <com/sun/star/ui/dialogs/ExtendedFilePickerElementIds.hpp>

#include <com/sun/star/ui/dialogs/TemplateDescription.hpp>

#include <com/sun/star/ui/dialogs/XFilePickerControlAccess.hpp>

#include <com/sun/star/ui/dialogs/XFilePicker3.hpp>

#include <o3tl/any.hxx>

#include <vcl/stdtext.hxx>

#include <vcl/graphicfilter.hxx>

#include <vcl/svapp.hxx>

#include <vcl/weld.hxx>

#include <sfx2/filedlghelper.hxx>

#include <sfx2/docfile.hxx>

#include <sfx2/opengrf.hxx>

#include <sfx2/strings.hrc>

#include <sfx2/sfxresid.hxx>

#include <osl/diagnose.h>

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

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

using namespace ::com::sun::star::ui::dialogs;

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

static TranslateId SvxOpenGrfErr2ResId( ErrCode err )

{

    if (err == ERRCODE_GRFILTER_OPENERROR)

        return RID_SVXSTR_GRFILTER_OPENERROR;

    else if (err == ERRCODE_GRFILTER_IOERROR)

        return RID_SVXSTR_GRFILTER_IOERROR;

    else if (err == ERRCODE_GRFILTER_VERSIONERROR)

        return RID_SVXSTR_GRFILTER_VERSIONERROR;

    else if (err == ERRCODE_GRFILTER_FILTERERROR)

        return RID_SVXSTR_GRFILTER_FILTERERROR;

    else

        return RID_SVXSTR_GRFILTER_FORMATERROR;

}

struct SvxOpenGrf_Impl

{

    SvxOpenGrf_Impl(weld::Window* pPreferredParent,

                    sal_Int16 nDialogType);

    sfx2::FileDialogHelper                  aFileDlg;

    OUString sDetectedFilter;

    weld::Window* pDialogParent;

    uno::Reference < XFilePickerControlAccess > xCtrlAcc;

};

SvxOpenGrf_Impl::SvxOpenGrf_Impl(weld::Window* pPreferredParent,

                                 sal_Int16 nDialogType)

    : aFileDlg(nDialogType, FileDialogFlags::Graphic, pPreferredParent)

    , pDialogParent(pPreferredParent)

{

    uno::Reference < XFilePicker3 > xFP = aFileDlg.GetFilePicker();

    xCtrlAcc.set(xFP, UNO_QUERY);

}

SvxOpenGraphicDialog::SvxOpenGraphicDialog(const OUString& rTitle, weld::Window* pPreferredParent)

    : mpImpl(new SvxOpenGrf_Impl(pPreferredParent, ui::dialogs::TemplateDescription::FILEOPEN_LINK_PREVIEW))

{

    mpImpl->aFileDlg.SetTitle(rTitle);

    mpImpl->aFileDlg.SetContext(sfx2::FileDialogHelper::InsertImage);

}

SvxOpenGraphicDialog::SvxOpenGraphicDialog(const OUString& rTitle, weld::Window* pPreferredParent,

                                           sal_Int16 nDialogType)

    : mpImpl(new SvxOpenGrf_Impl(pPreferredParent, nDialogType))

{

    mpImpl->aFileDlg.SetTitle(rTitle);

    mpImpl->aFileDlg.SetContext(sfx2::FileDialogHelper::InsertImage);

}

SvxOpenGraphicDialog::~SvxOpenGraphicDialog()

{

}

ErrCode SvxOpenGraphicDialog::Execute()

{

    ErrCode nImpRet;

    bool    bQuitLoop(false);

    while( !bQuitLoop &&

           mpImpl->aFileDlg.Execute() == ERRCODE_NONE )

    {

        if( !GetPath().isEmpty() )

        {

            GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();

            INetURLObject aObj( GetPath() );

            // check whether we can load the graphic

            OUString  aCurFilter( GetCurrentFilter() );

            sal_uInt16  nFormatNum = rFilter.GetImportFormatNumber( aCurFilter );

            sal_uInt16  nRetFormat = 0;

            sal_uInt16  nFound = USHRT_MAX;

            // non-local?

            if ( INetProtocol::File != aObj.GetProtocol() )

            {

                SfxMedium aMed( aObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), StreamMode::READ );

                aMed.Download();

                SvStream* pStream = aMed.GetInStream();

                if( pStream )

                    nImpRet = rFilter.CanImportGraphic( aObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), *pStream, nFormatNum, &nRetFormat );

                else

                    nImpRet = rFilter.CanImportGraphic( aObj, nFormatNum, &nRetFormat );

                if ( ERRCODE_NONE != nImpRet )

                {

                    if ( !pStream )

                        nImpRet = rFilter.CanImportGraphic( aObj, GRFILTER_FORMAT_DONTKNOW, &nRetFormat );

                    else

                        nImpRet = rFilter.CanImportGraphic( aObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), *pStream,

                                                             GRFILTER_FORMAT_DONTKNOW, &nRetFormat );

                }

            }

            else

            {

                nImpRet = rFilter.CanImportGraphic( aObj, nFormatNum, &nRetFormat );

                if( nImpRet != ERRCODE_NONE )

                    nImpRet = rFilter.CanImportGraphic( aObj, GRFILTER_FORMAT_DONTKNOW, &nRetFormat );

            }

            if ( ERRCODE_NONE == nImpRet )

                nFound = nRetFormat;

            // could not load?

            if ( nFound == USHRT_MAX )

            {

                std::unique_ptr<weld::MessageDialog> xWarn(Application::CreateMessageDialog(mpImpl->pDialogParent,

                                                           VclMessageType::Warning, VclButtonsType::NONE,

                                                           SfxResId(SvxOpenGrfErr2ResId(nImpRet))));

                xWarn->add_button(GetStandardText(StandardButtonType::Retry), RET_RETRY);

                xWarn->add_button(GetStandardText(StandardButtonType::Cancel), RET_CANCEL);

                bQuitLoop = xWarn->run() != RET_RETRY;

            }

            else

            {

                if( rFilter.GetImportFormatCount() )

                {

                    // store detected appropriate filter

                    OUString aFormatName(rFilter.GetImportFormatName(nFound));

                    SetDetectedFilter(aFormatName);

                }

                else

                {

                    SetDetectedFilter(mpImpl->aFileDlg.GetCurrentFilter());

                }

                return nImpRet;

            }

        }

    }

    // cancel

    return ErrCode(sal_uInt32(-1));

}

void SvxOpenGraphicDialog::SetPath( const OUString& rPath, bool bLinkState )

{

    mpImpl->aFileDlg.SetDisplayDirectory(rPath);

    AsLink(bLinkState);

}

void SvxOpenGraphicDialog::EnableLink( bool state )

{

    if( !mpImpl->xCtrlAcc.is() )

        return;

    try

    {

        mpImpl->xCtrlAcc->enableControl( ExtendedFilePickerElementIds::CHECKBOX_LINK, state );

    }

    catch(const IllegalArgumentException&)

    {

#ifdef DBG_UTIL

        OSL_FAIL( "Cannot enable \"link\" checkbox" );

#endif

    }

}

void SvxOpenGraphicDialog::AsLink(bool bState)

{

    if( !mpImpl->xCtrlAcc.is() )

        return;

    try

    {

        mpImpl->xCtrlAcc->setValue( ExtendedFilePickerElementIds::CHECKBOX_LINK, 0, Any(bState) );

    }

    catch(const IllegalArgumentException&)

    {

#ifdef DBG_UTIL

        OSL_FAIL( "Cannot check \"link\" checkbox" );

#endif

    }

}

bool SvxOpenGraphicDialog::IsAsLink() const

{

    try

    {

        if( mpImpl->xCtrlAcc.is() )

        {

            Any aVal = mpImpl->xCtrlAcc->getValue( ExtendedFilePickerElementIds::CHECKBOX_LINK, 0 );

            DBG_ASSERT(aVal.hasValue(), "Value CBX_INSERT_AS_LINK not found");

            return aVal.hasValue() && *o3tl::doAccess<bool>(aVal);

        }

    }

    catch(const IllegalArgumentException&)

    {

#ifdef DBG_UTIL

        OSL_FAIL( "Cannot access \"link\" checkbox" );

#endif

    }

    return false;

}

ErrCode SvxOpenGraphicDialog::GetGraphic(Graphic& rGraphic) const

{

    return mpImpl->aFileDlg.GetGraphic(rGraphic);

}

OUString SvxOpenGraphicDialog::GetPath() const

{

    return mpImpl->aFileDlg.GetPath();

}

OUString SvxOpenGraphicDialog::GetCurrentFilter() const

{

    return mpImpl->aFileDlg.GetCurrentFilter();

}

OUString const & SvxOpenGraphicDialog::GetDetectedFilter() const

{

    return mpImpl->sDetectedFilter;

}

void SvxOpenGraphicDialog::SetCurrentFilter(const OUString& rStr)

{

    mpImpl->aFileDlg.SetCurrentFilter(rStr);

}

void SvxOpenGraphicDialog::SetDetectedFilter(const OUString& rStr)

{

    mpImpl->sDetectedFilter = rStr;

}

Reference<ui::dialogs::XFilePickerControlAccess> const & SvxOpenGraphicDialog::GetFilePickerControlAccess() const

{

    return mpImpl->xCtrlAcc;

}

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