1 files changed, 116 insertions, 0 deletions
diff --git a/starmath/source/unofilter.cxx b/starmath/source/unofilter.cxx
new file mode 100644
index 000000000..fd150005d
--- /dev/null
+++ b/starmath/source/unofilter.cxx
@@ -0,0 +1,116 @@
+/* -*- 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: */