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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/.
*/
#include <unotools/mediadescriptor.hxx>
#include <unotools/ucbstreamhelper.hxx>
#include <sot/storage.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <document.hxx>
#include "mathtype.hxx"
#include <unomodel.hxx>
#include <tools/diagnose_ex.h>
using namespace ::com::sun::star;
namespace
{
/// Invokes the MathType importer via UNO.
class MathTypeFilter
: public cppu::WeakImplHelper<document::XFilter, document::XImporter, lang::XServiceInfo>
{
uno::Reference<lang::XComponent> m_xDstDoc;
public:
MathTypeFilter();
// XFilter
sal_Bool SAL_CALL filter(const uno::Sequence<beans::PropertyValue>& rDescriptor) override;
void SAL_CALL cancel() override;
// XImporter
void SAL_CALL setTargetDocument(const uno::Reference<lang::XComponent>& xDoc) override;
// XServiceInfo
OUString SAL_CALL getImplementationName() override;
sal_Bool SAL_CALL supportsService(const OUString& rServiceName) override;
uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
};
}
MathTypeFilter::MathTypeFilter() = default;
sal_Bool MathTypeFilter::filter(const uno::Sequence<beans::PropertyValue>& rDescriptor)
{
bool bSuccess = false;
try
{
utl::MediaDescriptor aMediaDesc(rDescriptor);
aMediaDesc.addInputStream();
uno::Reference<io::XInputStream> xInputStream;
aMediaDesc[utl::MediaDescriptor::PROP_INPUTSTREAM] >>= xInputStream;
std::unique_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream(xInputStream));
if (pStream)
{
if (SotStorage::IsStorageFile(pStream.get()))
{
tools::SvRef<SotStorage> aStorage(new SotStorage(pStream.get(), false));
// Is this a MathType Storage?
if (aStorage->IsStream("Equation Native"))
{
if (auto pModel = dynamic_cast<SmModel*>(m_xDstDoc.get()))
{
auto pDocShell = static_cast<SmDocShell*>(pModel->GetObjectShell());
OUStringBuffer aText(pDocShell->GetText());
MathType aEquation(aText);
bSuccess = aEquation.Parse(aStorage.get());
if (bSuccess)
{
pDocShell->SetText(aText.makeStringAndClear());
pDocShell->Parse();
}
}
}
}
}
}
catch (const uno::Exception&)
{
DBG_UNHANDLED_EXCEPTION("starmath");
}
return bSuccess;
}
void MathTypeFilter::cancel() {}
void MathTypeFilter::setTargetDocument(const uno::Reference<lang::XComponent>& xDoc)
{
m_xDstDoc = xDoc;
}
OUString MathTypeFilter::getImplementationName() { return "com.sun.star.comp.Math.MathTypeFilter"; }
sal_Bool MathTypeFilter::supportsService(const OUString& rServiceName)
{
return cppu::supportsService(this, rServiceName);
}
uno::Sequence<OUString> MathTypeFilter::getSupportedServiceNames()
{
return { "com.sun.star.document.ImportFilter" };
}
extern "C" SAL_DLLPUBLIC_EXPORT uno::XInterface*
com_sun_star_comp_Math_MathTypeFilter_get_implementation(uno::XComponentContext* /*pCtx*/,
uno::Sequence<uno::Any> const& /*rSeq*/)
{
return cppu::acquire(new MathTypeFilter);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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