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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 <vcl/wrkwin.hxx>
#include <tools/urlobj.hxx>
#include <tools/stream.hxx>
#include <sot/formats.hxx>
#include <sal/log.hxx>
#include <vcl/graphicfilter.hxx>
#include <sfx2/lnkbase.hxx>
#include <sfx2/app.hxx>
#include <sfx2/progress.hxx>
#include <sfx2/docfilt.hxx>
#include <sfx2/filedlghelper.hxx>
#include <sot/exchange.hxx>
#include <com/sun/star/uno/Any.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include <sfx2/docfac.hxx>
#include <com/sun/star/document/XTypeDetection.hpp>
#include <com/sun/star/container/XNameAccess.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <unotools/mediadescriptor.hxx>
#include <comphelper/processfactory.hxx>
#include <sfx2/linkmgr.hxx>
#include <sfx2/opengrf.hxx>
#include <sfx2/sfxresid.hxx>
#include <sfx2/objsh.hxx>
#include "fileobj.hxx"
#include <sfx2/strings.hrc>
#include <vcl/dibtools.hxx>
#include <vcl/svapp.hxx>
#define FILETYPE_TEXT 1
#define FILETYPE_GRF 2
#define FILETYPE_OBJECT 3
SvFileObject::SvFileObject()
: nPostUserEventId(nullptr)
, mxDelMed()
, nType(FILETYPE_TEXT)
, bLoadAgain(true)
, bSynchron(false)
, bLoadError(false)
, bWaitForData(false)
, bDataReady(false)
, bClearMedium(false)
, bStateChangeCalled(false)
{
}
SvFileObject::~SvFileObject()
{
if (xMed.is())
{
xMed->SetDoneLink( Link<void*,void>() );
xMed.clear();
}
if (nPostUserEventId)
Application::RemoveUserEvent(nPostUserEventId);
}
bool SvFileObject::GetData( css::uno::Any & rData,
const OUString & rMimeType,
bool /*bGetSynchron*/ )
{
SotClipboardFormatId nFmt = SotExchange::RegisterFormatMimeType( rMimeType );
switch( nType )
{
case FILETYPE_TEXT:
if( SotClipboardFormatId::SIMPLE_FILE == nFmt )
{
// The media in the application must be opened to lookup the
// relative file links!! This is done through the link manager
// of the Storage.
rData <<= sFileNm;
}
break;
case FILETYPE_GRF:
if (SotClipboardFormatId::GDIMETAFILE == nFmt
|| SotClipboardFormatId::BITMAP == nFmt
|| SotClipboardFormatId::SVXB == nFmt)
{
rData <<= sFileNm;
}
break;
case FILETYPE_OBJECT:
// TODO/LATER: possibility to insert a new object
rData <<= sFileNm;
break;
}
return true/*0 != aTypeList.Count()*/;
}
bool SvFileObject::Connect( sfx2::SvBaseLink* pLink )
{
if( !pLink || !pLink->GetLinkManager() )
return false;
// Test if not another link of the same connection already exists
sfx2::LinkManager::GetDisplayNames( pLink, nullptr, &sFileNm, nullptr, &sFilter );
if( OBJECT_CLIENT_GRF == pLink->GetObjType() )
{
SfxObjectShellRef pShell = pLink->GetLinkManager()->GetPersist();
if( pShell.is() )
{
if( pShell->IsAbortingImport() )
return false;
if( pShell->GetMedium() )
sReferer = pShell->GetMedium()->GetName();
}
}
switch( pLink->GetObjType() )
{
case OBJECT_CLIENT_GRF:
nType = FILETYPE_GRF;
bSynchron = pLink->IsSynchron();
break;
case OBJECT_CLIENT_FILE:
nType = FILETYPE_TEXT;
break;
case OBJECT_CLIENT_OLE:
nType = FILETYPE_OBJECT;
// TODO/LATER: introduce own type to be used for exchanging
break;
default:
return false;
}
SetUpdateTimeout( 0 );
// and now register by this or other found Pseudo-Object
AddDataAdvise( pLink, SotExchange::GetFormatMimeType( pLink->GetContentType()), 0 );
return true;
}
bool SvFileObject::LoadFile_Impl()
{
// We are still at Loading!!
if( bWaitForData || !bLoadAgain || xMed.is() )
return false;
// at the moment on the current DocShell
xMed = new SfxMedium( sFileNm, sReferer, StreamMode::STD_READ );
SvLinkSource::StreamToLoadFrom aStreamToLoadFrom =
getStreamToLoadFrom();
xMed->setStreamToLoadFrom(
aStreamToLoadFrom.m_xInputStreamToLoadFrom,
aStreamToLoadFrom.m_bIsReadOnly);
if( !bSynchron )
{
bLoadAgain = bDataReady = false;
bWaitForData = true;
tools::SvRef<SfxMedium> xTmpMed = xMed;
xMed->Download( LINK( this, SvFileObject, LoadGrfReady_Impl ) );
bClearMedium = !xMed.is();
if( bClearMedium )
xMed = xTmpMed; // If already finished in Download
return bDataReady;
}
bWaitForData = true;
bDataReady = false;
xMed->Download();
bLoadAgain = !xMed->IsRemote();
bWaitForData = false;
// Graphic is finished, also send DataChanged of the Status change:
SendStateChg_Impl( xMed->GetInStream() && xMed->GetInStream()->GetError()
? sfx2::LinkManager::STATE_LOAD_ERROR : sfx2::LinkManager::STATE_LOAD_OK );
return true;
}
/** detect the filter of the given file
@param _rURL
specifies the URL of the file which filter is to detected.<br/>
If the URL doesn't denote a valid (existent and accessible) file, the
request is silently dropped.
*/
static OUString impl_getFilter( const OUString& _rURL )
{
OUString sFilter;
if ( _rURL.isEmpty() )
return sFilter;
try
{
css::uno::Reference< css::document::XTypeDetection > xTypeDetection(
::comphelper::getProcessServiceFactory()->createInstance( "com.sun.star.document.TypeDetection" ),
css::uno::UNO_QUERY );
if ( xTypeDetection.is() )
{
utl::MediaDescriptor aDescr;
aDescr[ utl::MediaDescriptor::PROP_URL() ] <<= _rURL;
css::uno::Sequence< css::beans::PropertyValue > aDescrList =
aDescr.getAsConstPropertyValueList();
OUString sType = xTypeDetection->queryTypeByDescriptor( aDescrList, true );
if ( !sType.isEmpty() )
{
// Honor a selected/detected filter.
for (const auto& rDescr : std::as_const(aDescrList))
{
if (rDescr.Name == "FilterName")
{
if (rDescr.Value >>= sFilter)
break;
}
}
if (sFilter.isEmpty())
{
css::uno::Reference< css::container::XNameAccess > xTypeCont( xTypeDetection,
css::uno::UNO_QUERY );
if ( xTypeCont.is() )
{
/* XXX: for fdo#69948 scenario the sequence returned by
* getByName() contains an empty PreferredFilter
* property value (since? expected?) */
::comphelper::SequenceAsHashMap lTypeProps( xTypeCont->getByName( sType ) );
sFilter = lTypeProps.getUnpackedValueOrDefault(
"PreferredFilter", OUString() );
}
}
}
}
}
catch( const css::uno::Exception& )
{
}
return sFilter;
}
void SvFileObject::Edit(weld::Window* pParent, sfx2::SvBaseLink* pLink, const Link<const OUString&, void>& rEndEditHdl)
{
aEndEditLink = rEndEditHdl;
OUString sFile, sRange, sTmpFilter;
if( !pLink || !pLink->GetLinkManager() )
return;
sfx2::LinkManager::GetDisplayNames( pLink, nullptr, &sFile, &sRange, &sTmpFilter );
switch( pLink->GetObjType() )
{
case OBJECT_CLIENT_GRF:
{
nType = FILETYPE_GRF; // If not set already
SvxOpenGraphicDialog aDlg(SfxResId(RID_SVXSTR_EDITGRFLINK), pParent);
aDlg.EnableLink(false);
aDlg.SetPath( sFile, true );
aDlg.SetCurrentFilter( sTmpFilter );
if( !aDlg.Execute() )
{
sFile = aDlg.GetPath()
+ OUStringLiteral1(sfx2::cTokenSeparator)
+ OUStringLiteral1(sfx2::cTokenSeparator)
+ aDlg.GetDetectedFilter();
aEndEditLink.Call( sFile );
}
else
sFile.clear();
}
break;
case OBJECT_CLIENT_OLE:
{
nType = FILETYPE_OBJECT; // if not set already
::sfx2::FileDialogHelper & rFileDlg =
pLink->GetInsertFileDialog( OUString() );
rFileDlg.StartExecuteModal(
LINK( this, SvFileObject, DialogClosedHdl ) );
}
break;
case OBJECT_CLIENT_FILE:
{
nType = FILETYPE_TEXT; // if not set already
OUString sFactory;
SfxObjectShell* pShell = pLink->GetLinkManager()->GetPersist();
if ( pShell )
sFactory = pShell->GetFactory().GetFactoryName();
::sfx2::FileDialogHelper & rFileDlg =
pLink->GetInsertFileDialog(sFactory);
rFileDlg.StartExecuteModal(
LINK( this, SvFileObject, DialogClosedHdl ) );
}
break;
default:
sFile.clear();
}
}
IMPL_LINK_NOARG( SvFileObject, LoadGrfReady_Impl, void*, void )
{
// When we come from here there it can not be an error no more.
bLoadError = false;
bWaitForData = false;
if( !bDataReady )
{
// Graphic is finished, also send DataChanged from Status change
bDataReady = true;
SendStateChg_Impl( sfx2::LinkManager::STATE_LOAD_OK );
// and then send the data again
NotifyDataChanged();
}
if( bDataReady )
{
bLoadAgain = true;
if( xMed.is() )
{
xMed->SetDoneLink( Link<void*,void>() );
mxDelMed = xMed;
nPostUserEventId = Application::PostUserEvent(
LINK( this, SvFileObject, DelMedium_Impl ));
xMed.clear();
}
}
}
IMPL_LINK_NOARG( SvFileObject, DelMedium_Impl, void*, void )
{
nPostUserEventId = nullptr;
mxDelMed.clear();
}
IMPL_LINK( SvFileObject, DialogClosedHdl, sfx2::FileDialogHelper*, _pFileDlg, void )
{
OUString sFile;
if ( FILETYPE_TEXT == nType || FILETYPE_OBJECT == nType )
{
if ( _pFileDlg && _pFileDlg->GetError() == ERRCODE_NONE )
{
OUString sURL( _pFileDlg->GetPath() );
sFile = sURL + OUStringLiteral1(sfx2::cTokenSeparator)
+ OUStringLiteral1(sfx2::cTokenSeparator)
+ impl_getFilter( sURL );
}
}
else
{
SAL_WARN( "sfx.appl", "SvFileObject::DialogClosedHdl(): wrong file type" );
}
aEndEditLink.Call( sFile );
}
/*
The method determines whether the data-object can be read from a DDE.
*/
bool SvFileObject::IsPending() const
{
return FILETYPE_GRF == nType && !bLoadError && bWaitForData;
}
bool SvFileObject::IsDataComplete() const
{
bool bRet = false;
if( FILETYPE_GRF != nType )
bRet = true;
else if( !bLoadError && !bWaitForData )
{
SvFileObject* pThis = const_cast<SvFileObject*>(this);
if( bDataReady ||
( bSynchron && pThis->LoadFile_Impl() && xMed.is() ) )
bRet = true;
else
{
INetURLObject aUrl( sFileNm );
if( aUrl.HasError() ||
INetProtocol::NotValid == aUrl.GetProtocol() )
bRet = true;
}
}
return bRet;
}
void SvFileObject::CancelTransfers()
{
// unsubscribe from the cache if in the middle of loading
if( !bDataReady )
{
// Do not set-up again
bLoadAgain = false;
bDataReady = bLoadError = bWaitForData = true;
SendStateChg_Impl( sfx2::LinkManager::STATE_LOAD_ABORT );
}
}
void SvFileObject::SendStateChg_Impl( sfx2::LinkManager::LinkState nState )
{
if( !bStateChangeCalled && HasDataLinks() )
{
DataChanged( SotExchange::GetFormatName(
sfx2::LinkManager::RegisterStatusInfoId()), css::uno::makeAny(OUString::number( nState )) );
bStateChangeCalled = true;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|