435 lines
13 KiB
C++
435 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <tools/urlobj.hxx>
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#include <tools/stream.hxx>
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#include <sot/formats.hxx>
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#include <sal/log.hxx>
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#include <sfx2/lnkbase.hxx>
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#include <sfx2/filedlghelper.hxx>
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#include <sot/exchange.hxx>
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#include <com/sun/star/uno/Any.hxx>
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#include <com/sun/star/uno/Sequence.hxx>
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#include <sfx2/docfac.hxx>
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#include <com/sun/star/document/XTypeDetection.hpp>
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#include <com/sun/star/container/XNameAccess.hpp>
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#include <com/sun/star/lang/XMultiServiceFactory.hpp>
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#include <unotools/mediadescriptor.hxx>
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#include <comphelper/processfactory.hxx>
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#include <sfx2/linkmgr.hxx>
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#include <sfx2/opengrf.hxx>
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#include <sfx2/sfxresid.hxx>
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#include <sfx2/objsh.hxx>
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#include "fileobj.hxx"
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#include <sfx2/strings.hrc>
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#include <vcl/svapp.hxx>
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enum class SvFileObjectType
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{
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Text = 1, Graphic = 2, Object = 3
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};
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SvFileObject::SvFileObject()
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: nPostUserEventId(nullptr)
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, nType(SvFileObjectType::Text)
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, bLoadAgain(true)
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, bSynchron(false)
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, bLoadError(false)
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, bWaitForData(false)
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, bDataReady(false)
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, bClearMedium(false)
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, bStateChangeCalled(false)
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{
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}
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SvFileObject::~SvFileObject()
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{
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if (xMed.is())
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{
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xMed->SetDoneLink( Link<void*,void>() );
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xMed.clear();
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}
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if (nPostUserEventId)
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Application::RemoveUserEvent(nPostUserEventId);
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}
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bool SvFileObject::GetData( css::uno::Any & rData,
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const OUString & rMimeType,
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bool /*bGetSynchron*/ )
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{
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SotClipboardFormatId nFmt = SotExchange::RegisterFormatMimeType( rMimeType );
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switch( nType )
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{
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case SvFileObjectType::Text:
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if( SotClipboardFormatId::SIMPLE_FILE == nFmt )
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{
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// The media in the application must be opened to lookup the
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// relative file links!! This is done through the link manager
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// of the Storage.
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rData <<= sFileNm;
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}
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break;
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case SvFileObjectType::Graphic:
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if (SotClipboardFormatId::GDIMETAFILE == nFmt
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|| SotClipboardFormatId::BITMAP == nFmt
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|| SotClipboardFormatId::SVXB == nFmt)
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{
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rData <<= sFileNm;
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}
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break;
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case SvFileObjectType::Object:
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// TODO/LATER: possibility to insert a new object
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rData <<= sFileNm;
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break;
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}
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return true/*0 != aTypeList.Count()*/;
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}
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bool SvFileObject::Connect( sfx2::SvBaseLink* pLink )
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{
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if( !pLink || !pLink->GetLinkManager() )
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return false;
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// Test if not another link of the same connection already exists
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sfx2::LinkManager::GetDisplayNames( pLink, nullptr, &sFileNm, nullptr, &sFilter );
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if( sfx2::SvBaseLinkObjectType::ClientGraphic == pLink->GetObjType() )
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{
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SfxObjectShellRef pShell = pLink->GetLinkManager()->GetPersist();
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if( pShell.is() )
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{
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if( pShell->IsAbortingImport() )
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return false;
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if( pShell->GetMedium() )
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sReferer = pShell->GetMedium()->GetName();
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}
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}
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switch( pLink->GetObjType() )
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{
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case sfx2::SvBaseLinkObjectType::ClientGraphic:
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nType = SvFileObjectType::Graphic;
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bSynchron = pLink->IsSynchron();
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break;
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case sfx2::SvBaseLinkObjectType::ClientFile:
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nType = SvFileObjectType::Text;
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break;
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case sfx2::SvBaseLinkObjectType::ClientOle:
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nType = SvFileObjectType::Object;
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// TODO/LATER: introduce own type to be used for exchanging
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break;
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default:
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return false;
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}
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SetUpdateTimeout( 0 );
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// and now register by this or other found Pseudo-Object
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AddDataAdvise( pLink, SotExchange::GetFormatMimeType( pLink->GetContentType()), 0 );
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return true;
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}
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bool SvFileObject::LoadFile_Impl()
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{
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// We are still at Loading!!
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if( bWaitForData || !bLoadAgain || xMed.is() )
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return false;
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// at the moment on the current DocShell
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xMed = new SfxMedium( sFileNm, sReferer, StreamMode::STD_READ );
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SvLinkSource::StreamToLoadFrom aStreamToLoadFrom =
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getStreamToLoadFrom();
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xMed->setStreamToLoadFrom(
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aStreamToLoadFrom.m_xInputStreamToLoadFrom,
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aStreamToLoadFrom.m_bIsReadOnly);
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if( !bSynchron )
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{
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bLoadAgain = bDataReady = false;
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bWaitForData = true;
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tools::SvRef<SfxMedium> xTmpMed = xMed;
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xMed->Download( LINK( this, SvFileObject, LoadGrfReady_Impl ) );
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bClearMedium = !xMed.is();
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if( bClearMedium )
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xMed = std::move(xTmpMed); // If already finished in Download
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return bDataReady;
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}
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bWaitForData = true;
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bDataReady = false;
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xMed->Download();
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bLoadAgain = !xMed->IsRemote();
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bWaitForData = false;
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// Graphic is finished, also send DataChanged of the Status change:
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SendStateChg_Impl( xMed->GetInStream() && xMed->GetInStream()->GetError()
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? sfx2::LinkManager::STATE_LOAD_ERROR : sfx2::LinkManager::STATE_LOAD_OK );
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return true;
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}
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/** detect the filter of the given file
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@param _rURL
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specifies the URL of the file which filter is to detected.<br/>
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If the URL doesn't denote a valid (existent and accessible) file, the
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request is silently dropped.
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*/
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static OUString impl_getFilter( const OUString& _rURL )
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{
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OUString sFilter;
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if ( _rURL.isEmpty() )
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return sFilter;
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try
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{
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css::uno::Reference< css::document::XTypeDetection > xTypeDetection(
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::comphelper::getProcessServiceFactory()->createInstance( u"com.sun.star.document.TypeDetection"_ustr ),
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css::uno::UNO_QUERY );
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if ( xTypeDetection.is() )
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{
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utl::MediaDescriptor aDescr;
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aDescr[ utl::MediaDescriptor::PROP_URL ] <<= _rURL;
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css::uno::Sequence< css::beans::PropertyValue > aDescrList =
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aDescr.getAsConstPropertyValueList();
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OUString sType = xTypeDetection->queryTypeByDescriptor( aDescrList, true );
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if ( !sType.isEmpty() )
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{
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// Honor a selected/detected filter.
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for (const auto& rDescr : aDescrList)
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{
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if (rDescr.Name == "FilterName")
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{
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if (rDescr.Value >>= sFilter)
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break;
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}
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}
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if (sFilter.isEmpty())
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{
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css::uno::Reference< css::container::XNameAccess > xTypeCont( xTypeDetection,
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css::uno::UNO_QUERY );
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if ( xTypeCont.is() )
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{
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/* XXX: for fdo#69948 scenario the sequence returned by
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* getByName() contains an empty PreferredFilter
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* property value (since? expected?) */
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::comphelper::SequenceAsHashMap lTypeProps( xTypeCont->getByName( sType ) );
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sFilter = lTypeProps.getUnpackedValueOrDefault(
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u"PreferredFilter"_ustr, OUString() );
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}
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}
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}
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}
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}
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catch( const css::uno::Exception& )
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{
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}
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return sFilter;
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}
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void SvFileObject::Edit(weld::Window* pParent, sfx2::SvBaseLink* pLink, const Link<const OUString&, void>& rEndEditHdl)
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{
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aEndEditLink = rEndEditHdl;
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OUString sFile, sRange, sTmpFilter;
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if( !pLink || !pLink->GetLinkManager() )
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return;
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sfx2::LinkManager::GetDisplayNames( pLink, nullptr, &sFile, &sRange, &sTmpFilter );
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switch( pLink->GetObjType() )
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{
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case sfx2::SvBaseLinkObjectType::ClientGraphic:
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{
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nType = SvFileObjectType::Graphic; // If not set already
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SvxOpenGraphicDialog aDlg(SfxResId(RID_SVXSTR_EDITGRFLINK), pParent);
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aDlg.EnableLink(false);
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aDlg.SetPath( sFile, true );
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aDlg.SetCurrentFilter( sTmpFilter );
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if( !aDlg.Execute() )
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{
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sFile = aDlg.GetPath()
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+ OUStringChar(sfx2::cTokenSeparator)
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+ OUStringChar(sfx2::cTokenSeparator)
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+ aDlg.GetDetectedFilter();
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aEndEditLink.Call( sFile );
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}
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else
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sFile.clear();
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}
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break;
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case sfx2::SvBaseLinkObjectType::ClientOle:
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{
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nType = SvFileObjectType::Object; // if not set already
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::sfx2::FileDialogHelper & rFileDlg =
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pLink->GetInsertFileDialog( OUString() );
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rFileDlg.SetContext(sfx2::FileDialogHelper::LinkClientOLE);
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rFileDlg.StartExecuteModal(
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LINK( this, SvFileObject, DialogClosedHdl ) );
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}
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break;
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case sfx2::SvBaseLinkObjectType::ClientFile:
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{
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nType = SvFileObjectType::Text; // if not set already
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OUString sFactory;
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SfxObjectShell* pShell = pLink->GetLinkManager()->GetPersist();
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if ( pShell )
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sFactory = pShell->GetFactory().GetFactoryName();
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::sfx2::FileDialogHelper & rFileDlg =
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pLink->GetInsertFileDialog(sFactory);
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rFileDlg.SetContext(sfx2::FileDialogHelper::LinkClientFile);
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rFileDlg.StartExecuteModal(
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LINK( this, SvFileObject, DialogClosedHdl ) );
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}
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break;
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default:
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sFile.clear();
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}
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}
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IMPL_LINK_NOARG( SvFileObject, LoadGrfReady_Impl, void*, void )
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{
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// When we come from here there it can not be an error no more.
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bLoadError = false;
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bWaitForData = false;
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if( !bDataReady )
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{
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// Graphic is finished, also send DataChanged from Status change
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bDataReady = true;
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SendStateChg_Impl( sfx2::LinkManager::STATE_LOAD_OK );
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// and then send the data again
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NotifyDataChanged();
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}
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if( bDataReady )
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{
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bLoadAgain = true;
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if( xMed.is() )
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{
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xMed->SetDoneLink( Link<void*,void>() );
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mxDelMed = xMed;
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nPostUserEventId = Application::PostUserEvent(
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LINK( this, SvFileObject, DelMedium_Impl ));
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xMed.clear();
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}
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}
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}
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IMPL_LINK_NOARG( SvFileObject, DelMedium_Impl, void*, void )
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{
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nPostUserEventId = nullptr;
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mxDelMed.clear();
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}
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IMPL_LINK( SvFileObject, DialogClosedHdl, sfx2::FileDialogHelper*, _pFileDlg, void )
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{
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OUString sFile;
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if ( SvFileObjectType::Text == nType || SvFileObjectType::Object == nType )
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{
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if ( _pFileDlg && _pFileDlg->GetError() == ERRCODE_NONE )
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{
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OUString sURL( _pFileDlg->GetPath() );
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sFile = sURL + OUStringChar(sfx2::cTokenSeparator)
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+ OUStringChar(sfx2::cTokenSeparator)
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+ impl_getFilter( sURL );
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}
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}
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else
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{
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SAL_WARN( "sfx.appl", "SvFileObject::DialogClosedHdl(): wrong file type" );
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}
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aEndEditLink.Call( sFile );
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}
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/*
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The method determines whether the data-object can be read from a DDE.
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*/
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bool SvFileObject::IsPending() const
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{
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return SvFileObjectType::Graphic == nType && !bLoadError && bWaitForData;
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}
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bool SvFileObject::IsDataComplete() const
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{
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bool bRet = false;
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if( SvFileObjectType::Graphic != nType )
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bRet = true;
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else if( !bLoadError && !bWaitForData )
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{
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SvFileObject* pThis = const_cast<SvFileObject*>(this);
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if( bDataReady ||
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( bSynchron && pThis->LoadFile_Impl() && xMed.is() ) )
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bRet = true;
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else
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{
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INetURLObject aUrl( sFileNm );
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if( aUrl.HasError() ||
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INetProtocol::NotValid == aUrl.GetProtocol() )
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bRet = true;
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}
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}
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return bRet;
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}
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void SvFileObject::CancelTransfers()
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{
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// unsubscribe from the cache if in the middle of loading
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if( !bDataReady )
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{
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// Do not set-up again
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bLoadAgain = false;
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bDataReady = bLoadError = bWaitForData = true;
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SendStateChg_Impl( sfx2::LinkManager::STATE_LOAD_ABORT );
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}
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}
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void SvFileObject::SendStateChg_Impl( sfx2::LinkManager::LinkState nState )
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{
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if( !bStateChangeCalled && HasDataLinks() )
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{
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DataChanged( SotExchange::GetFormatName(
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sfx2::LinkManager::RegisterStatusInfoId()), css::uno::Any(OUString::number( nState )) );
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bStateChangeCalled = true;
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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