Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 435 insertions, 0 deletions

diff --git a/sfx2/source/appl/fileobj.cxx b/sfx2/source/appl/fileobj.cxx
new file mode 100644
index 000000000..18aea4a59
--- /dev/null
+++ b/sfx2/source/appl/fileobj.cxx
@@ -0,0 +1,435 @@
+/* -*- 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/urlobj.hxx>
+#include <tools/stream.hxx>
+#include <sot/formats.hxx>
+#include <sal/log.hxx>
+#include <sfx2/lnkbase.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/svapp.hxx>
+
+enum class SvFileObjectType
+{
+    Text = 1, Graphic = 2, Object = 3
+};
+
+SvFileObject::SvFileObject()
+    : nPostUserEventId(nullptr)
+    , nType(SvFileObjectType::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 SvFileObjectType::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 SvFileObjectType::Graphic:
+        if (SotClipboardFormatId::GDIMETAFILE == nFmt
+         || SotClipboardFormatId::BITMAP == nFmt
+         || SotClipboardFormatId::SVXB == nFmt)
+        {
+            rData <<= sFileNm;
+        }
+        break;
+    case SvFileObjectType::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( sfx2::SvBaseLinkObjectType::ClientGraphic == 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 sfx2::SvBaseLinkObjectType::ClientGraphic:
+        nType = SvFileObjectType::Graphic;
+        bSynchron = pLink->IsSynchron();
+        break;
+
+    case sfx2::SvBaseLinkObjectType::ClientFile:
+        nType = SvFileObjectType::Text;
+        break;
+
+    case sfx2::SvBaseLinkObjectType::ClientOle:
+        nType = SvFileObjectType::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 sfx2::SvBaseLinkObjectType::ClientGraphic:
+        {
+            nType = SvFileObjectType::Graphic;       // 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()
+                    + OUStringChar(sfx2::cTokenSeparator)
+                    + OUStringChar(sfx2::cTokenSeparator)
+                    + aDlg.GetDetectedFilter();
+
+                aEndEditLink.Call( sFile );
+            }
+            else
+                sFile.clear();
+        }
+        break;
+
+        case sfx2::SvBaseLinkObjectType::ClientOle:
+        {
+            nType = SvFileObjectType::Object; // if not set already
+
+            ::sfx2::FileDialogHelper & rFileDlg =
+                pLink->GetInsertFileDialog( OUString() );
+            rFileDlg.SetContext(sfx2::FileDialogHelper::LinkClientOLE);
+            rFileDlg.StartExecuteModal(
+                    LINK( this, SvFileObject, DialogClosedHdl ) );
+        }
+        break;
+
+        case sfx2::SvBaseLinkObjectType::ClientFile:
+        {
+            nType = SvFileObjectType::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.SetContext(sfx2::FileDialogHelper::LinkClientFile);
+            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 ( SvFileObjectType::Text == nType || SvFileObjectType::Object == nType )
+    {
+        if ( _pFileDlg && _pFileDlg->GetError() == ERRCODE_NONE )
+        {
+            OUString sURL( _pFileDlg->GetPath() );
+            sFile = sURL + OUStringChar(sfx2::cTokenSeparator)
+                + OUStringChar(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 SvFileObjectType::Graphic == nType && !bLoadError && bWaitForData;
+}
+
+bool SvFileObject::IsDataComplete() const
+{
+    bool bRet = false;
+    if( SvFileObjectType::Graphic != 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::Any(OUString::number( nState )) );
+        bStateChangeCalled = true;
+    }
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */