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path: root/sfx2/source/appl/sfxpicklist.cxx
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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/.
 *
 * 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 <comphelper/lok.hxx>
#include <comphelper/base64.hxx>
#include <com/sun/star/document/XDocumentProperties.hpp>
#include <unotools/historyoptions.hxx>
#include <unotools/useroptions.hxx>
#include <tools/datetime.hxx>
#include <tools/urlobj.hxx>
#include <svl/inethist.hxx>
#include <vcl/pngwrite.hxx>
#include <vcl/svapp.hxx>
#include <officecfg/Office/Common.hxx>


#include <sfx2/app.hxx>
#include <sfxpicklist.hxx>
#include <sfx2/sfxsids.hrc>
#include <sfx2/event.hxx>
#include <sfx2/objsh.hxx>
#include <sfx2/docfile.hxx>
#include <openurlhint.hxx>
#include <sfx2/docfilt.hxx>
#include <sfx2/viewfrm.hxx>


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

class SfxPickListImpl : public SfxListener
{
    /**
     * Adds the given document to the pick list (recent documents) if it satisfies
       certain requirements, e.g. being writable. Check implementation for requirement
       details.
     */
    static void         AddDocumentToPickList( const SfxObjectShell* pDocShell );

public:
    SfxPickListImpl(SfxApplication& rApp);
    virtual void Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) override;
};

void SfxPickListImpl::AddDocumentToPickList( const SfxObjectShell* pDocSh )
{
    if (pDocSh->IsAvoidRecentDocs() || comphelper::LibreOfficeKit::isActive())
        return;

    SfxMedium *pMed = pDocSh->GetMedium();
    if( !pMed )
        return;

    // Unnamed Documents and embedded-Documents not in Picklist
    if ( !pDocSh->HasName() ||
            SfxObjectCreateMode::STANDARD != pDocSh->GetCreateMode() )
        return;

    // Help not in History
    INetURLObject aURL( pDocSh->IsDocShared() ? pDocSh->GetSharedFileURL() : pMed->GetOrigURL() );
    if ( aURL.GetProtocol() == INetProtocol::VndSunStarHelp )
        return;

    // add no document that forbids this
    if ( !pMed->IsUpdatePickList() )
        return;

    // ignore hidden documents
    if ( !SfxViewFrame::GetFirst( pDocSh ) )
        return;

    OUString  aTitle = pDocSh->GetTitle(SFX_TITLE_PICKLIST);
    OUString  aFilter;
    std::shared_ptr<const SfxFilter> pFilter = pMed->GetFilter();
    if ( pFilter )
        aFilter = pFilter->GetFilterName();

    std::optional<OUString> aThumbnail;

    // generate the thumbnail
    //fdo#74834: only generate thumbnail for history if the corresponding option is not disabled in the configuration
    if (!pDocSh->IsModified() && !Application::IsHeadlessModeEnabled() &&
            officecfg::Office::Common::History::RecentDocsThumbnail::get())
    {
        // not modified => the document matches what is in the shell
        const SfxUnoAnyItem* pEncryptionDataItem = SfxItemSet::GetItem<SfxUnoAnyItem>(pMed->GetItemSet(), SID_ENCRYPTIONDATA, false);
        if ( pEncryptionDataItem )
        {
            // encrypted document, will show a generic document icon instead
            aThumbnail = OUString();
        }
        else
        {
            BitmapEx aResultBitmap = pDocSh->GetPreviewBitmap();
            if (!aResultBitmap.IsEmpty())
            {
                SvMemoryStream aStream(65535, 65535);
                vcl::PNGWriter aWriter(aResultBitmap);
                if (aWriter.Write(aStream))
                {
                    Sequence<sal_Int8> aSequence(static_cast<const sal_Int8*>(aStream.GetData()), aStream.Tell());
                    OUStringBuffer aBuffer;
                    ::comphelper::Base64::encode(aBuffer, aSequence);
                    aThumbnail = aBuffer.makeStringAndClear();
                }
            }
        }
    }
    ::std::optional<bool> const oIsReadOnly(pMed->IsOriginallyLoadedReadOnly());

    // add to svtool history options
    SvtHistoryOptions::AppendItem( EHistoryType::PickList,
            aURL.GetURLNoPass( INetURLObject::DecodeMechanism::NONE ),
            aFilter,
            aTitle,
            aThumbnail,
            oIsReadOnly);

    if ( aURL.GetProtocol() == INetProtocol::File )
        Application::AddToRecentDocumentList( aURL.GetURLNoPass( INetURLObject::DecodeMechanism::NONE ),
                                                                 pFilter ? pFilter->GetMimeType() : OUString(),
                                                                 pFilter ? pFilter->GetServiceName() : OUString() );
}

SfxPickList::SfxPickList(SfxApplication& rApp)
    : mxImpl(new SfxPickListImpl(rApp))
{
}

SfxPickList::~SfxPickList()
{
}

SfxPickListImpl::SfxPickListImpl(SfxApplication& rApp)
{
    StartListening(rApp);
}

void SfxPickListImpl::Notify( SfxBroadcaster&, const SfxHint& rHint )
{
    const SfxOpenUrlHint* pOpenUrlHint = dynamic_cast<const SfxOpenUrlHint*>(&rHint);
    if ( pOpenUrlHint )
    {
        INetURLHistory::GetOrCreate()->PutUrl( INetURLObject( pOpenUrlHint->GetDocumentURL() ));
    }

    const SfxEventHint* pEventHint = dynamic_cast<const SfxEventHint*>(&rHint);
    if ( !pEventHint )
        return;

    // only ObjectShell-related events with media interest
    SfxObjectShell* pDocSh = pEventHint->GetObjShell();
    if( !pDocSh )
        return;

    switch ( pEventHint->GetEventId() )
    {
        case SfxEventHintId::CreateDoc:
        {
            bool bAllowModif = pDocSh->IsEnableSetModified();
            if ( bAllowModif )
                pDocSh->EnableSetModified( false );

            using namespace ::com::sun::star;
            uno::Reference<document::XDocumentProperties> xDocProps(
                pDocSh->getDocProperties());
            if (xDocProps.is()) {
                xDocProps->setAuthor( SvtUserOptions().GetFullName() );
                ::DateTime now( ::DateTime::SYSTEM );
                xDocProps->setCreationDate( now.GetUNODateTime() );
            }

            if ( bAllowModif )
                pDocSh->EnableSetModified( bAllowModif );
        }
        break;

        case SfxEventHintId::OpenDoc:
        case SfxEventHintId::SaveDocDone:
        case SfxEventHintId::SaveAsDocDone:
        case SfxEventHintId::SaveToDocDone:
        case SfxEventHintId::CloseDoc:
        {
            AddDocumentToPickList(pDocSh);
        }
        break;

        case SfxEventHintId::SaveAsDoc:
        {
            SfxMedium *pMedium = pDocSh->GetMedium();
            if (!pMedium)
                return;

            // We're starting a "Save As". Add the current document (if it's
            // not a "new" document) to the "Recent Documents" list before we
            // switch to the new path.
            // If the current document is new, path will be empty.
            OUString path = pMedium->GetOrigURL();
            if (!path.isEmpty())
            {
                AddDocumentToPickList(pDocSh);
            }
        }
        break;
        default: break;
    }
}

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