Adding upstream version 4:24.2.0.upstream/4%24.2.0

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

13 files changed, 1896 insertions, 0 deletions

diff --git a/include/oox/core/binarycodec.hxx b/include/oox/core/binarycodec.hxx
new file mode 100644
index 0000000000..e7bfbaaa43
--- /dev/null
+++ b/include/oox/core/binarycodec.hxx
@@ -0,0 +1,42 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_BINARYCODEC_HXX
+#define INCLUDED_OOX_CORE_BINARYCODEC_HXX
+
+#include <sal/config.h>
+
+#include <oox/dllapi.h>
+#include <sal/types.h>
+
+namespace com::sun::star {
+    namespace beans { struct NamedValue; }
+}
+
+namespace oox { class AttributeList; }
+
+namespace oox::core::CodecHelper
+{
+    /** Returns the password hash if it is in the required 16-bit limit. */
+    OOX_DLLPUBLIC sal_uInt16   getPasswordHash( const AttributeList& rAttribs, sal_Int32 nElement );
+} // namespace oox::core::CodecHelper
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/oox/core/contexthandler.hxx b/include/oox/core/contexthandler.hxx
new file mode 100644
index 0000000000..89bdb2b9af
--- /dev/null
+++ b/include/oox/core/contexthandler.hxx
@@ -0,0 +1,115 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_CONTEXTHANDLER_HXX
+#define INCLUDED_OOX_CORE_CONTEXTHANDLER_HXX
+
+#include <memory>
+#include <string_view>
+
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/xml/sax/XFastContextHandler.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <oox/dllapi.h>
+#include <rtl/ref.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace com::sun::star {
+    namespace xml::sax { class XFastAttributeList; }
+    namespace xml::sax { class XLocator; }
+}
+
+namespace oox { class SequenceInputStream; }
+
+namespace oox::core {
+
+class XmlFilterBase;
+struct Relation;
+class Relations;
+
+class ContextHandler;
+typedef ::rtl::Reference< ContextHandler > ContextHandlerRef;
+
+struct FragmentBaseData;
+typedef std::shared_ptr< FragmentBaseData > FragmentBaseDataRef;
+
+typedef ::cppu::WeakImplHelper< css::xml::sax::XFastContextHandler > ContextHandler_BASE;
+
+class OOX_DLLPUBLIC ContextHandler : public ContextHandler_BASE
+{
+public:
+    explicit            ContextHandler( const ContextHandler& rParent );
+    virtual             ~ContextHandler() override;
+
+    /** Returns the filter instance. */
+    XmlFilterBase&      getFilter() const;
+    /** Returns the relations of the current fragment. */
+    const Relations&    getRelations() const;
+    /** Returns the full path of the current fragment. */
+    const OUString& getFragmentPath() const;
+
+    /** Returns the full fragment path for the target of the passed relation. */
+    OUString     getFragmentPathFromRelation( const Relation& rRelation ) const;
+    /** Returns the full fragment path for the passed relation identifier. */
+    OUString     getFragmentPathFromRelId( const OUString& rRelId ) const;
+    /** Returns the full fragment path for the first relation of the passed type. */
+    OUString     getFragmentPathFromFirstType( std::u16string_view rType ) const;
+    OUString     getFragmentPathFromFirstTypeFromOfficeDoc( std::u16string_view rType ) const;
+
+    // com.sun.star.xml.sax.XFastContextHandler interface ---------------------
+
+    virtual void SAL_CALL startFastElement( ::sal_Int32 Element, const css::uno::Reference< css::xml::sax::XFastAttributeList >& Attribs ) override;
+    virtual void SAL_CALL startUnknownElement( const OUString& Namespace, const OUString& Name, const css::uno::Reference< css::xml::sax::XFastAttributeList >& Attribs ) override;
+    virtual void SAL_CALL endFastElement( ::sal_Int32 Element ) override;
+    virtual void SAL_CALL endUnknownElement( const OUString& Namespace, const OUString& Name ) override;
+    virtual css::uno::Reference< css::xml::sax::XFastContextHandler > SAL_CALL createFastChildContext( ::sal_Int32 Element, const css::uno::Reference< css::xml::sax::XFastAttributeList >& Attribs ) override;
+    virtual css::uno::Reference< css::xml::sax::XFastContextHandler > SAL_CALL createUnknownChildContext( const OUString& Namespace, const OUString& Name, const css::uno::Reference< css::xml::sax::XFastAttributeList >& Attribs ) override;
+    virtual void SAL_CALL characters( const OUString& aChars ) override;
+
+    // record context interface -----------------------------------------------
+
+    virtual ContextHandlerRef createRecordContext( sal_Int32 nRecId, SequenceInputStream& rStrm );
+    virtual void        startRecord( sal_Int32 nRecId, SequenceInputStream& rStrm );
+    virtual void        endRecord( sal_Int32 nRecId );
+
+protected:
+    /** Helper constructor for the FragmentHandler. */
+    explicit            ContextHandler( FragmentBaseDataRef  rxBaseData );
+
+    void                implSetLocator( const css::uno::Reference< css::xml::sax::XLocator >& rxLocator );
+
+#ifdef _MSC_VER
+    ContextHandler() {} // workaround
+#endif
+
+private:
+    ContextHandler&     operator=( const ContextHandler& ) = delete;
+
+private:
+    FragmentBaseDataRef mxBaseData;         ///< Base data of the fragment.
+};
+
+} // namespace oox::core
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/oox/core/contexthandler2.hxx b/include/oox/core/contexthandler2.hxx
new file mode 100644
index 0000000000..1414db7f24
--- /dev/null
+++ b/include/oox/core/contexthandler2.hxx
@@ -0,0 +1,291 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_CONTEXTHANDLER2_HXX
+#define INCLUDED_OOX_CORE_CONTEXTHANDLER2_HXX
+
+#include <cstddef>
+#include <memory>
+#include <vector>
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <oox/core/contexthandler.hxx>
+#include <oox/dllapi.h>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace com::sun::star {
+    namespace xml::sax { class XFastAttributeList; }
+    namespace xml::sax { class XFastContextHandler; }
+}
+
+namespace oox {
+    class AttributeList;
+    class SequenceInputStream;
+}
+
+namespace oox::core {
+
+const sal_Int32 XML_ROOT_CONTEXT    = SAL_MAX_INT32;
+
+struct ElementInfo;
+
+/** Helper class that provides a context stack.
+
+    Fragment handlers and context handlers derived from this helper class will
+    track the identifiers of the visited elements in a stack. The idea is to
+    use the same instance of a fragment handler or context handler to process
+    several nested elements in an XML stream. For that, the abstract function
+    onCreateContext() has to return 'this' for the passed element.
+
+    Derived classes have to implement the createFastChildContext(),
+    startFastElement(), characters(), and endFastElement() functions from the
+    com.sun.star.xml.sax.XFastContextHandler interface by simply forwarding
+    them to the respective implCreateChildContext(), implStartElement(),
+    implCharacters(), and implEndElement() functions of this helper. This is
+    implemented already in the classes ContextHandler2 and FragmentHandler2.
+    The new abstract functions have to be implemented according to the elements
+    to be processed.
+
+    Similarly, for binary import, derived classes have to forward the
+    createRecordContext(), startRecord(), and endRecord() functions from the
+    ContextHandler class to the implCreateRecordContext(), implStartRecord(),
+    and implEndRecord() functions of this helper. Again, this is implemented
+    already in the classes ContextHandler2 and FragmentHandler2.
+ */
+class OOX_DLLPUBLIC SAL_LOPLUGIN_ANNOTATE("crosscast") ContextHandler2Helper
+{
+public:
+    explicit            ContextHandler2Helper( bool bEnableTrimSpace, XmlFilterBase& rFilter );
+    explicit            ContextHandler2Helper( const ContextHandler2Helper& rParent );
+    virtual             ~ContextHandler2Helper();
+
+    // allow instances to be stored in ::rtl::Reference
+    virtual void SAL_CALL acquire() noexcept = 0;
+    virtual void SAL_CALL release() noexcept = 0;
+
+    // interface --------------------------------------------------------------
+
+    /** Will be called to create a context handler for the passed element.
+
+        Usually 'this' can be returned to improve performance by reusing the
+        same instance to process several elements. Used by OOXML import only.
+     */
+    virtual ContextHandlerRef onCreateContext( sal_Int32 nElement, const AttributeList& rAttribs ) = 0;
+
+    /** Will be called when a new element has been started.
+
+        This function is called at the context handler returned from
+        onCreateContext(), or, for root elements of an XML stream, at the
+        fragment handler itself.
+
+        The current element identifier can be accessed with getCurrentElement()
+        or isCurrentElement(). Used by OOXML import only.
+     */
+    virtual void        onStartElement( const AttributeList& rAttribs ) = 0;
+
+    /** Will be called before a new child element starts, or if the current
+        element is about to be left.
+
+        This helper function collects all text fragments received by the
+        characters() function (such as encoded characters which are passed in
+        separate calls to the characters() function), and passes the
+        concatenated and trimmed string.
+
+        The current element identifier can be accessed with getCurrentElement()
+        or isCurrentElement(). Used by OOXML import only.
+     */
+    virtual void        onCharacters( const OUString& rChars ) = 0;
+
+    /** Will be called when the current element is about to be left.
+
+        The current element identifier can be accessed with getCurrentElement()
+        or isCurrentElement(). Used by OOXML import only.
+     */
+    virtual void        onEndElement() = 0;
+
+    /** Will be called to create a context handler for the passed record.
+
+        Usually 'this' can be returned to improve performance by reusing the
+        same instance to process several records. Used by BIFF import only.
+     */
+    virtual ContextHandlerRef onCreateRecordContext( sal_Int32 nRecId, SequenceInputStream& rStrm ) = 0;
+
+    /** Will be called when a new record block in a binary stream has been
+        started.
+
+        The current record identifier can be accessed with getCurrentElement()
+        or isCurrentElement(). Used by BIFF import only.
+     */
+    virtual void        onStartRecord( SequenceInputStream& rStrm ) = 0;
+
+    /** Will be called when the current record block is about to be left.
+
+        The current record identifier can be accessed with getCurrentElement()
+        or isCurrentElement(). Used by BIFF import only.
+     */
+    virtual void        onEndRecord() = 0;
+
+    // helpers ----------------------------------------------------------------
+
+    /** Returns the identifier of the currently processed element. Ignores MCE elements in stack */
+    sal_Int32           getCurrentElement() const;
+
+    /** Returns the identifier of the currently processed element - Including MCE root elements */
+    sal_Int32           getCurrentElementWithMce() const;
+
+    /** Returns true, if nElement contains the identifier of the currently
+        processed element. */
+    bool         isCurrentElement( sal_Int32 nElement ) const
+                            { return getCurrentElement() == nElement; }
+
+    /** Returns true, if either nElement1 or nElement2 contain the identifier
+        of the currently processed element. */
+    bool         isCurrentElement( sal_Int32 nElement1, sal_Int32 nElement2 ) const
+                            { return isCurrentElement( nElement1 ) || isCurrentElement( nElement2 ); }
+
+    /** Returns the identifier of the specified parent element. */
+    sal_Int32           getParentElement( sal_Int32 nCountBack = 1 ) const;
+
+    /** Returns true, if nElement contains the identifier of the specified
+        parent element. */
+    bool isParentElement( sal_Int32 nElement, sal_Int32 nCountBack = 1 ) const
+                            { return getParentElement( nCountBack ) == nElement; }
+
+    /** Returns true, if the element currently processed is the root element of
+        the context or fragment handler. */
+    bool                isRootElement() const;
+
+    // implementation ---------------------------------------------------------
+
+protected:
+    /** Must be called from createFastChildContext() in derived classes. */
+    css::uno::Reference< css::xml::sax::XFastContextHandler >
+                        implCreateChildContext(
+                            sal_Int32 nElement,
+                            const css::uno::Reference< css::xml::sax::XFastAttributeList >& rxAttribs );
+
+    /** Must be called from startFastElement() in derived classes. */
+    void                implStartElement(
+                            sal_Int32 nElement,
+                            const css::uno::Reference< css::xml::sax::XFastAttributeList >& rxAttribs );
+
+    /** Must be called from characters() in derived classes. */
+    void                implCharacters( std::u16string_view rChars );
+
+    /** Must be called from endFastElement() in derived classes. */
+    void                implEndElement( sal_Int32 nElement );
+
+    /** Must be called from createRecordContext() in derived classes. */
+    ContextHandlerRef   implCreateRecordContext( sal_Int32 nRecId, SequenceInputStream& rStrm );
+
+    /** Must be called from startRecord() in derived classes. */
+    void                implStartRecord( sal_Int32 nRecId, SequenceInputStream& rStrm );
+
+    /** Must be called from endRecord() in derived classes. */
+    void                implEndRecord( sal_Int32 nRecId );
+
+    bool                prepareMceContext( sal_Int32 nElement, const AttributeList& rAttribs );
+    XmlFilterBase&      getDocFilter() const { return mrFilter; }
+
+    enum class MCE_STATE
+    {
+        Started,
+        FoundChoice
+    };
+
+    MCE_STATE           getMCEState() const { return aMceState.back(); }
+    void                setMCEState( MCE_STATE aState ) { aMceState.back() = aState; }
+    void                addMCEState( MCE_STATE aState ) { aMceState.push_back( aState ); }
+    void                removeMCEState() { aMceState.pop_back(); }
+    bool                isMCEStateEmpty() const { return aMceState.empty(); }
+
+private:
+    ContextHandler2Helper& operator=( const ContextHandler2Helper& ) = delete;
+
+    ElementInfo&        pushElementInfo( sal_Int32 nElement );
+    void                popElementInfo();
+    void                processCollectedChars();
+
+private:
+    typedef std::vector< ElementInfo >        ContextStack;
+    typedef std::shared_ptr< ContextStack > ContextStackRef;
+
+    ContextStackRef     mxContextStack;     ///< Stack of all processed elements.
+    size_t              mnRootStackSize;    ///< Stack size on construction time.
+    std::vector<MCE_STATE> aMceState;
+
+protected:
+    bool                mbEnableTrimSpace;  ///< True = trim whitespace in characters().
+    XmlFilterBase&      mrFilter;
+};
+
+class OOX_DLLPUBLIC ContextHandler2 : public ContextHandler, public ContextHandler2Helper
+{
+public:
+    explicit            ContextHandler2( ContextHandler2Helper const & rParent );
+    virtual             ~ContextHandler2() override;
+
+    ContextHandler2(ContextHandler2 const &) = default;
+    ContextHandler2(ContextHandler2 &&) = default;
+    ContextHandler2 & operator =(ContextHandler2 const &) = delete; // due to ContextHandler
+    ContextHandler2 & operator =(ContextHandler2 &&) = delete; // due to ContextHandler
+
+    // resolve ambiguity from base classes
+    virtual void SAL_CALL acquire() noexcept override { ContextHandler::acquire(); }
+    virtual void SAL_CALL release() noexcept override { ContextHandler::release(); }
+
+    // com.sun.star.xml.sax.XFastContextHandler interface ---------------------
+
+    virtual css::uno::Reference< css::xml::sax::XFastContextHandler > SAL_CALL
+                        createFastChildContext(
+                            sal_Int32 nElement,
+                            const css::uno::Reference< css::xml::sax::XFastAttributeList >& rxAttribs ) final override;
+
+    virtual void SAL_CALL startFastElement(
+                            sal_Int32 nElement,
+                            const css::uno::Reference< css::xml::sax::XFastAttributeList >& rxAttribs ) final override;
+
+    virtual void SAL_CALL characters( const OUString& rChars ) final override;
+
+    virtual void SAL_CALL endFastElement( sal_Int32 nElement ) final override;
+
+    // oox.core.ContextHandler interface --------------------------------------
+
+    virtual ContextHandlerRef createRecordContext( sal_Int32 nRecId, SequenceInputStream& rStrm ) override;
+    virtual void        startRecord( sal_Int32 nRecId, SequenceInputStream& rStrm ) override;
+    virtual void        endRecord( sal_Int32 nRecId ) override;
+
+    // oox.core.ContextHandler2Helper interface -------------------------------
+
+    virtual ContextHandlerRef onCreateContext( sal_Int32 nElement, const AttributeList& rAttribs ) override;
+    virtual void        onStartElement( const AttributeList& rAttribs ) override;
+    virtual void        onCharacters( const OUString& rChars ) override;
+    virtual void        onEndElement() override;
+
+    virtual ContextHandlerRef onCreateRecordContext( sal_Int32 nRecId, SequenceInputStream& rStrm ) override;
+    virtual void        onStartRecord( SequenceInputStream& rStrm ) override;
+    virtual void        onEndRecord() override;
+};
+
+} // namespace oox::core
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/oox/core/fastparser.hxx b/include/oox/core/fastparser.hxx
new file mode 100644
index 0000000000..058bd344b5
--- /dev/null
+++ b/include/oox/core/fastparser.hxx
@@ -0,0 +1,118 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_FASTPARSER_HXX
+#define INCLUDED_OOX_CORE_FASTPARSER_HXX
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <rtl/ustring.hxx>
+#include <rtl/ref.hxx>
+#include <sal/types.h>
+#include <oox/dllapi.h>
+
+namespace com::sun::star {
+    namespace io { class XInputStream; }
+    namespace uno { class XComponentContext; }
+    namespace xml::sax { class XFastDocumentHandler; }
+    namespace xml::sax { class XFastParser; }
+    namespace xml::sax { class XFastTokenHandler; }
+    namespace xml::sax { struct InputSource; }
+}
+
+namespace oox {
+    struct NamespaceMap;
+    class StorageBase;
+}
+
+namespace sax_fastparser {
+    class FastSaxParser;
+}
+
+namespace oox::core {
+
+
+/** Wrapper for a fast SAX parser that works on automatically generated OOXML
+    token and namespace identifiers.
+ */
+class OOX_DLLPUBLIC FastParser
+{
+public:
+    /// @throws css::uno::RuntimeException
+    explicit            FastParser();
+
+                        FastParser(const FastParser&) = delete;
+                        FastParser& operator=(const FastParser&) = delete;
+
+                        ~FastParser();
+
+    /** Registers an OOXML namespace at the parser.
+        @throws css::lang::IllegalArgumentException
+        @throws css::uno::RuntimeException
+    */
+    void                registerNamespace( sal_Int32 nNamespaceId );
+
+    /** Sets the passed document handler that will receive the SAX parser events.
+        @throws css::uno::RuntimeException
+    */
+    void                setDocumentHandler(
+                            const css::uno::Reference< css::xml::sax::XFastDocumentHandler >& rxDocHandler );
+
+    void                clearDocumentHandler();
+
+    /** Parses the passed SAX input source.
+        @param bCloseStream  True = closes the stream in the input source after parsing.
+        @throws css::xml::sax::SAXException
+        @throws css::io::IOException
+        @throws css::uno::RuntimeException
+    */
+    void                parseStream( const css::xml::sax::InputSource& rInputSource, bool bCloseStream = false );
+
+    /** Parses the passed input stream.
+        @param bCloseStream  True = closes the passed stream after parsing.
+        @throws css::xml::sax::SAXException
+        @throws css::io::IOException
+        @throws css::uno::RuntimeException
+    */
+    void                parseStream(
+                            const css::uno::Reference< css::io::XInputStream >& rxInStream,
+                            const OUString& rStreamName );
+
+    /** Parses a stream from the passed storage with the specified name.
+        @param bCloseStream  True = closes the stream after parsing.
+        @throws css::xml::sax::SAXException
+        @throws css::io::IOException
+        @throws css::uno::RuntimeException
+    */
+    void                parseStream( StorageBase& rStorage, const OUString& rStreamName );
+
+    const css::uno::Reference< css::xml::sax::XFastTokenHandler >&
+               getTokenHandler() const { return mxTokenHandler; }
+
+private:
+    css::uno::Reference<css::xml::sax::XFastTokenHandler>   mxTokenHandler;
+    const NamespaceMap&                                     mrNamespaceMap;
+    rtl::Reference<sax_fastparser::FastSaxParser>           mxParser;
+};
+
+
+} // namespace oox::core
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/oox/core/fasttokenhandler.hxx b/include/oox/core/fasttokenhandler.hxx
new file mode 100644
index 0000000000..396474b988
--- /dev/null
+++ b/include/oox/core/fasttokenhandler.hxx
@@ -0,0 +1,68 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_FASTTOKENHANDLER_HXX
+#define INCLUDED_OOX_CORE_FASTTOKENHANDLER_HXX
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <oox/dllapi.h>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+#include <sax/fastattribs.hxx>
+
+namespace oox { class TokenMap; }
+
+namespace oox::core {
+
+
+/** Wrapper implementing the com.sun.star.xml.sax.XFastTokenHandler API interface
+    that provides access to the tokens generated from the internal token name list.
+ */
+class OOX_DLLPUBLIC FastTokenHandler final :
+    public cppu::ImplInheritanceHelper< sax_fastparser::FastTokenHandlerBase, css::lang::XServiceInfo >
+{
+public:
+    explicit            FastTokenHandler();
+    virtual             ~FastTokenHandler() override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& rServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // XFastTokenHandler
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getUTF8Identifier( sal_Int32 nToken ) override;
+    virtual sal_Int32 SAL_CALL getTokenFromUTF8( const css::uno::Sequence< sal_Int8 >& Identifier ) override;
+
+    // Much faster direct C++ shortcut to the method that matters
+    virtual sal_Int32 getTokenDirect( const char *pToken, sal_Int32 nLength ) const override;
+
+private:
+    const TokenMap&     mrTokenMap;     ///< Reference to global token map singleton.
+};
+
+
+} // namespace oox::core
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/oox/core/filterbase.hxx b/include/oox/core/filterbase.hxx
new file mode 100644
index 0000000000..eec0d6a19c
--- /dev/null
+++ b/include/oox/core/filterbase.hxx
@@ -0,0 +1,280 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_FILTERBASE_HXX
+#define INCLUDED_OOX_CORE_FILTERBASE_HXX
+
+#include <memory>
+
+#include <com/sun/star/document/XExporter.hpp>
+#include <com/sun/star/document/XFilter.hpp>
+#include <com/sun/star/document/XImporter.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <oox/dllapi.h>
+#include <oox/helper/binarystreambase.hxx>
+#include <oox/helper/storagebase.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace com::sun::star {
+    namespace beans { struct PropertyValue; }
+    namespace drawing { class XShape; }
+    namespace frame { class XFrame; }
+    namespace frame { class XModel; }
+    namespace io { class XInputStream; }
+    namespace io { class XOutputStream; }
+    namespace io { class XStream; }
+    namespace lang { class XComponent; }
+    namespace lang { class XMultiServiceFactory; }
+    namespace task { class XStatusIndicator; }
+    namespace uno { class XComponentContext; }
+}
+
+namespace comphelper {
+    class SequenceAsHashMap;
+}
+namespace utl {
+    class MediaDescriptor;
+}
+
+namespace oox {
+    class GraphicHelper;
+    class ModelObjectHelper;
+}
+
+namespace oox::ole {
+    class OleObjectHelper;
+    class VbaProject;
+}
+
+namespace oox::core {
+
+enum OoxmlVersion
+{
+    /** There are currently 5 editions of ECMA-376, latest is from 2021.
+      * 1st edition allegedly corresponds to Word 2007
+      * 2nd edition allegedly corresponds to ISO 29500:2008
+      * it's unclear what changed in later editions; there is:
+        Annex M.  Differences Between ECMA-376:2016 and ECMA-376:2006
+        but that's relative to 1st edition.
+    */
+    ECMA_376_1ST_EDITION,
+    ISOIEC_29500_2008
+};
+
+struct FilterBaseImpl;
+
+typedef ::cppu::WeakImplHelper<
+        css::lang::XServiceInfo,
+        css::lang::XInitialization,
+        css::document::XImporter,
+        css::document::XExporter,
+        css::document::XFilter >
+    FilterBase_BASE;
+
+class OOX_DLLPUBLIC FilterBase : public FilterBase_BASE
+{
+public:
+    /// @throws css::uno::RuntimeException
+    explicit            FilterBase(
+                            const css::uno::Reference< css::uno::XComponentContext >& rxContext );
+
+    virtual             ~FilterBase() override;
+
+    /** Returns true, if filter is an import filter. */
+    bool                isImportFilter() const;
+    /** Returns true, if filter is an export filter. */
+    bool                isExportFilter() const;
+
+    OoxmlVersion getVersion() const;
+
+    /** Derived classes implement import of the entire document. */
+    virtual bool        importDocument() = 0;
+
+    /** Derived classes implement export of the entire document. */
+    virtual bool        exportDocument() = 0;
+
+
+    /** Returns the component context passed in the filter constructor (always existing). */
+    const css::uno::Reference< css::uno::XComponentContext >&
+                        getComponentContext() const;
+
+    /** Returns the document model (always existing). */
+    const css::uno::Reference< css::frame::XModel >&
+                        getModel() const;
+
+    /** Returns the service factory provided by the document model (always existing). */
+    const css::uno::Reference< css::lang::XMultiServiceFactory >&
+                        getModelFactory() const;
+
+    /** Returns the frame that will contain the document model (may be null). */
+    const css::uno::Reference< css::frame::XFrame >&
+                        getTargetFrame() const;
+
+    /** Returns the status indicator (may be null). */
+    const css::uno::Reference< css::task::XStatusIndicator >&
+                        getStatusIndicator() const;
+
+    /** Returns the FilterData */
+    ::comphelper::SequenceAsHashMap& getFilterData() const;
+
+    /** Returns the media descriptor. */
+    utl::MediaDescriptor& getMediaDescriptor() const;
+
+    /** Returns the URL of the imported or exported file. */
+    const OUString& getFileUrl() const;
+
+    /** Returns an absolute URL for the passed relative or absolute URL. */
+    OUString     getAbsoluteUrl( const OUString& rUrl ) const;
+
+    /** Returns the base storage of the imported/exported file. */
+    StorageRef const & getStorage() const;
+
+    /** Opens and returns the specified input stream from the base storage.
+
+        @param rStreamName
+            The name of the embedded storage stream. The name may contain
+            slashes to open streams from embedded substorages. If base stream
+            access has been enabled in the storage, the base stream can be
+            accessed by passing an empty string as stream name.
+     */
+    css::uno::Reference< css::io::XInputStream >
+                        openInputStream( const OUString& rStreamName ) const;
+
+    /** Opens and returns the specified output stream from the base storage.
+
+        @param rStreamName
+            The name of the embedded storage stream. The name may contain
+            slashes to open streams from embedded substorages. If base stream
+            access has been enabled in the storage, the base stream can be
+            accessed by passing an empty string as stream name.
+     */
+    css::uno::Reference< css::io::XOutputStream >
+                        openOutputStream( const OUString& rStreamName ) const;
+
+    /** Commits changes to base storage (and substorages) */
+    void                commitStorage() const;
+
+    // helpers ----------------------------------------------------------------
+
+    /** Returns a helper for the handling of graphics and graphic objects. */
+    GraphicHelper&      getGraphicHelper() const;
+
+    /** Returns a helper with containers for various named drawing objects for
+        the imported document. */
+    ModelObjectHelper&  getModelObjectHelper() const;
+
+    ModelObjectHelper& getModelObjectHelperForModel(
+        const css::uno::Reference<css::lang::XMultiServiceFactory>& xFactory) const;
+
+    /** Returns a helper for the handling of OLE objects. */
+    ::oox::ole::OleObjectHelper& getOleObjectHelper() const;
+
+    /** Returns the VBA project manager. */
+    ::oox::ole::VbaProject& getVbaProject() const;
+
+    /** Imports the raw binary data from the specified stream.
+        @return  True, if the data could be imported from the stream. */
+    bool                importBinaryData( StreamDataSequence & orDataSeq, const OUString& rStreamName );
+
+    // com.sun.star.lang.XServiceInfo interface -------------------------------
+
+    virtual sal_Bool SAL_CALL
+                        supportsService( const OUString& rServiceName ) override;
+
+    virtual css::uno::Sequence< OUString > SAL_CALL
+                        getSupportedServiceNames() override;
+
+    // com.sun.star.lang.XInitialization interface ----------------------------
+
+    /** Receives user defined arguments.
+
+        @param rArgs
+            the sequence of arguments passed to the filter. The implementation
+            expects one or two arguments. The first argument shall be the
+            com.sun.star.lang.XMultiServiceFactory interface of the global
+            service factory. The optional second argument may contain a
+            sequence of com.sun.star.beans.NamedValue objects. The different
+            filter implementations may support different arguments.
+     */
+    virtual void SAL_CALL initialize(
+                            const css::uno::Sequence< css::uno::Any >& rArgs ) override;
+
+    // com.sun.star.document.XImporter interface ------------------------------
+
+    virtual void SAL_CALL setTargetDocument(
+                            const css::uno::Reference< css::lang::XComponent >& rxDocument ) override;
+
+    // com.sun.star.document.XExporter interface ------------------------------
+
+    virtual void SAL_CALL setSourceDocument(
+                            const css::uno::Reference< css::lang::XComponent >& rxDocument ) override;
+
+    // com.sun.star.document.XFilter interface --------------------------------
+
+    virtual sal_Bool SAL_CALL filter(
+                            const css::uno::Sequence< css::beans::PropertyValue >& rMediaDescSeq ) override;
+
+    virtual void SAL_CALL cancel() override;
+
+    bool exportVBA() const;
+
+    bool isExportTemplate() const;
+
+protected:
+    virtual css::uno::Reference< css::io::XInputStream >
+                        implGetInputStream( utl::MediaDescriptor& rMediaDesc ) const;
+    virtual css::uno::Reference< css::io::XStream >
+                        implGetOutputStream( utl::MediaDescriptor& rMediaDesc ) const;
+
+    virtual bool        implFinalizeExport( utl::MediaDescriptor& rMediaDescriptor );
+
+    css::uno::Reference< css::io::XStream > const &
+                        getMainDocumentStream( ) const;
+
+private:
+    void                setMediaDescriptor(
+                            const css::uno::Sequence< css::beans::PropertyValue >& rMediaDescSeq );
+
+    /** Derived classes may create a specialized graphic helper, e.g. for
+        resolving palette colors. */
+    virtual GraphicHelper* implCreateGraphicHelper() const;
+
+    /** Derived classes create a VBA project manager object. */
+    virtual ::oox::ole::VbaProject* implCreateVbaProject() const = 0;
+
+    virtual StorageRef  implCreateStorage(
+                            const css::uno::Reference< css::io::XInputStream >& rxInStream ) const = 0;
+    virtual StorageRef  implCreateStorage(
+                            const css::uno::Reference< css::io::XStream >& rxOutStream ) const = 0;
+
+private:
+    std::unique_ptr< FilterBaseImpl > mxImpl;
+};
+
+} // namespace oox::core
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/oox/core/filterdetect.hxx b/include/oox/core/filterdetect.hxx
new file mode 100644
index 0000000000..8b01bcc5f2
--- /dev/null
+++ b/include/oox/core/filterdetect.hxx
@@ -0,0 +1,172 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_FILTERDETECT_HXX
+#define INCLUDED_OOX_CORE_FILTERDETECT_HXX
+
+#include <vector>
+
+#include <com/sun/star/document/XExtendedFilterDetection.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/xml/sax/XFastDocumentHandler.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <oox/dllapi.h>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace com::sun::star {
+    namespace beans { struct PropertyValue; }
+    namespace io { class XInputStream; }
+    namespace uno { class XComponentContext; }
+    namespace xml::sax { class XFastAttributeList; }
+    namespace xml::sax { class XFastContextHandler; }
+    namespace xml::sax { class XLocator; }
+}
+
+namespace utl { class MediaDescriptor; }
+
+namespace oox { class AttributeList; }
+
+namespace oox::core {
+
+enum class OOXMLVariant {
+    ECMA_Transitional,
+    ISO_Transitional,
+    ISO_Strict
+};
+
+
+/** Document handler specifically designed for detecting OOXML file formats.
+
+    It takes a reference to the filter string object via its constructor, and
+    puts the name of the detected filter to it, if it successfully finds one.
+ */
+class FilterDetectDocHandler final : public ::cppu::WeakImplHelper< css::xml::sax::XFastDocumentHandler >
+{
+public:
+    explicit            FilterDetectDocHandler( const css::uno::Reference< css::uno::XComponentContext >& rxContext, OUString& rFilter, OUString aFileName );
+    virtual             ~FilterDetectDocHandler() override;
+
+    // XFastDocumentHandler
+    virtual void SAL_CALL startDocument() override;
+    virtual void SAL_CALL endDocument() override;
+    virtual void SAL_CALL processingInstruction( const OUString& rTarget, const OUString& rData ) override;
+    virtual void SAL_CALL setDocumentLocator( const css::uno::Reference< css::xml::sax::XLocator >& xLocator ) override;
+
+    // XFastContextHandler
+    virtual void SAL_CALL startFastElement( sal_Int32 nElement, const css::uno::Reference< css::xml::sax::XFastAttributeList >& Attribs ) override;
+    virtual void SAL_CALL startUnknownElement( const OUString& Namespace, const OUString& Name, const css::uno::Reference< css::xml::sax::XFastAttributeList >& Attribs ) override;
+    virtual void SAL_CALL endFastElement( sal_Int32 Element ) override;
+    virtual void SAL_CALL endUnknownElement( const OUString& Namespace, const OUString& Name ) override;
+    virtual css::uno::Reference< XFastContextHandler > SAL_CALL createFastChildContext( sal_Int32 Element, const css::uno::Reference< css::xml::sax::XFastAttributeList >& Attribs ) override;
+    virtual css::uno::Reference< XFastContextHandler > SAL_CALL createUnknownChildContext( const OUString& Namespace, const OUString& Name, const css::uno::Reference< css::xml::sax::XFastAttributeList >& Attribs ) override;
+    virtual void SAL_CALL characters( const OUString& aChars ) override;
+
+private:
+    void                parseRelationship( const AttributeList& rAttribs );
+
+    OUString            getFilterNameFromContentType( std::u16string_view rContentType, std::u16string_view rFileName );
+    void                parseContentTypesDefault( const AttributeList& rAttribs );
+    void                parseContentTypesOverride( const AttributeList& rAttribs );
+
+private:
+    typedef ::std::vector< sal_Int32 > ContextVector;
+
+    OUString&           mrFilterName;
+    OUString            maFileName;
+    ContextVector       maContextStack;
+    OUString            maTargetPath;
+    OOXMLVariant        maOOXMLVariant;
+    css::uno::Reference< css::uno::XComponentContext > mxContext;
+};
+
+
+class OOX_DLLPUBLIC FilterDetect final : public ::cppu::WeakImplHelper<css::document::XExtendedFilterDetection, css::lang::XServiceInfo>
+{
+public:
+    /// @throws css::uno::RuntimeException
+    explicit            FilterDetect( const css::uno::Reference< css::uno::XComponentContext >& rxContext );
+    virtual             ~FilterDetect() override;
+
+    /** Tries to extract an unencrypted ZIP package from the passed media
+        descriptor.
+
+        First, this function checks if the input stream provided by the media
+        descriptor property 'InputStream' contains a ZIP package. If yes, this
+        stream is returned.
+
+        Second, this function checks if the 'ComponentData' property exists and
+        contains a sequence of com.sun.star.beans.NamedValue. If yes, a named
+        value is searched with the name 'DecryptedPackage' and a value of type
+        com.sun.star.io.XStream. If the input stream provided by this XStream
+        contains a ZIP package, this input stream is returned.
+
+        Third, this function checks if the input stream of the media descriptor
+        contains an OLE package. If yes, it checks the existence of the streams
+        'EncryptionInfo' and 'EncryptedPackage' and tries to decrypt the package
+        into a temporary file. This may include requesting a password from the
+        media descriptor property 'Password' or from the user, using the
+        interaction handler provided by the descriptor. On success, and if the
+        decrypted package is a ZIP package, the XStream of the temporary file
+        is stored in the property 'ComponentData' of the media descriptor and
+        its input stream is returned.
+     */
+    css::uno::Reference< css::io::XInputStream >
+                        extractUnencryptedPackage( utl::MediaDescriptor& rMediaDesc ) const;
+
+    // com.sun.star.lang.XServiceInfo interface -------------------------------
+
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& rServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // com.sun.star.document.XExtendedFilterDetection interface ---------------
+
+    /** Detects MS Office 2007 file types and supports package decryption.
+
+        The following file types are detected:
+        - MS Word 2007 XML Document (*.docx, *.docm)
+        - MS Word 2007 XML Template (*.dotx, *.dotm)
+        - MS Excel 2007 XML Document (*.xlsx, *.xlsm)
+        - MS Excel 2007 BIFF12 Document (*.xlsb)
+        - MS Excel 2007 XML Template (*.xltx, *.xltm)
+        - MS Powerpoint 2007 XML Document (*.pptx, *.pptm)
+        - MS Powerpoint 2007 XML Template (*.potx, *.potm)
+
+        If the package is encrypted, the detection tries to decrypt it into a
+        temporary file. The user may be asked for a password. The XStream
+        interface of the temporary file will be stored in the 'ComponentData'
+        property of the passed media descriptor.
+     */
+    virtual OUString SAL_CALL
+                        detect( css::uno::Sequence< css::beans::PropertyValue >& rMediaDescSeq ) override;
+
+private:
+    css::uno::Reference< css::uno::XComponentContext > mxContext;
+};
+
+
+} // namespace oox::core
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/oox/core/fragmenthandler.hxx b/include/oox/core/fragmenthandler.hxx
new file mode 100644
index 0000000000..b39eae0116
--- /dev/null
+++ b/include/oox/core/fragmenthandler.hxx
@@ -0,0 +1,139 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_FRAGMENTHANDLER_HXX
+#define INCLUDED_OOX_CORE_FRAGMENTHANDLER_HXX
+
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/xml/sax/XFastDocumentHandler.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <oox/core/contexthandler.hxx>
+#include <oox/core/relations.hxx>
+#include <oox/dllapi.h>
+#include <rtl/ref.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace com::sun::star {
+    namespace io { class XInputStream; }
+    namespace xml::sax { class XFastAttributeList; }
+    namespace xml::sax { class XFastContextHandler; }
+    namespace xml::sax { class XLocator; }
+}
+
+namespace oox::core {
+
+class XmlFilterBase;
+
+/** Base data of a fragment.
+
+    This data is stored in a separate struct to make it accessible in every
+    child context handler of the fragment.
+ */
+struct FragmentBaseData
+{
+    XmlFilterBase&      mrFilter;
+    const OUString      maFragmentPath;
+    css::uno::Reference< css::xml::sax::XLocator >
+                        mxLocator;
+    RelationsRef        mxRelations;
+
+    explicit            FragmentBaseData(
+                            XmlFilterBase& rFilter,
+                            OUString aFragmentPath,
+                            RelationsRef xRelations );
+};
+
+
+/** Describes record identifiers used to create contexts in a binary stream.
+
+    If a record is used to start a new context, usually the record identifier
+    increased by 1 is used to mark the end of this context, e.g. the Excel
+    record SHEETDATA == 0x0091 starts the <sheetData> context, and the record
+    SHEETDATA_END == 0x0092 ends this context. But some records are used to
+    start a new context, though there is no identifier to end this context,
+    e.g. the ROW or EXTROW records. These record identifiers can be marked by
+    setting the mnEndRecId member of this struct to -1.
+ */
+struct RecordInfo
+{
+    sal_Int32           mnStartRecId;       ///< Record identifier for context start.
+    sal_Int32           mnEndRecId;         ///< Record identifier for context end, -1 = no record.
+};
+
+
+typedef ::cppu::ImplInheritanceHelper< ContextHandler, css::xml::sax::XFastDocumentHandler > FragmentHandler_BASE;
+
+class OOX_DLLPUBLIC FragmentHandler : public FragmentHandler_BASE
+{
+public:
+    explicit            FragmentHandler( XmlFilterBase& rFilter, const OUString& rFragmentPath );
+    virtual             ~FragmentHandler() override;
+
+    FragmentHandler(FragmentHandler const &) = default;
+    FragmentHandler(FragmentHandler &&) = default;
+    FragmentHandler & operator =(FragmentHandler const &) = delete; // due to ContextHandler
+    FragmentHandler & operator =(FragmentHandler &&) = delete; // due to ContextHandler
+
+    /** Returns the com.sun.star.xml.sax.XFastContextHandler interface of this context. */
+    css::uno::Reference< css::xml::sax::XFastContextHandler >
+                        getFastContextHandler() { return static_cast< ContextHandler* >( this ); }
+
+    // com.sun.star.xml.sax.XFastDocumentHandler interface --------------------
+
+    virtual void SAL_CALL startDocument() override;
+    virtual void SAL_CALL endDocument() override;
+    virtual void SAL_CALL processingInstruction( const OUString& rTarget, const OUString& rData ) override;
+    virtual void SAL_CALL setDocumentLocator( const css::uno::Reference< css::xml::sax::XLocator >& rxLocator ) override;
+
+    // com.sun.star.xml.sax.XFastContextHandler interface ---------------------
+
+    virtual void SAL_CALL startFastElement( ::sal_Int32 Element, const css::uno::Reference< css::xml::sax::XFastAttributeList >& Attribs ) override;
+    virtual void SAL_CALL startUnknownElement( const OUString& Namespace, const OUString& Name, const css::uno::Reference< css::xml::sax::XFastAttributeList >& Attribs ) override;
+    virtual void SAL_CALL endFastElement( ::sal_Int32 Element ) override;
+    virtual void SAL_CALL endUnknownElement( const OUString& Namespace, const OUString& Name ) override;
+    virtual css::uno::Reference< css::xml::sax::XFastContextHandler > SAL_CALL createFastChildContext( ::sal_Int32 Element, const css::uno::Reference< css::xml::sax::XFastAttributeList >& Attribs ) override;
+    virtual css::uno::Reference< css::xml::sax::XFastContextHandler > SAL_CALL createUnknownChildContext( const OUString& Namespace, const OUString& Name, const css::uno::Reference< css::xml::sax::XFastAttributeList >& Attribs ) override;
+    virtual void SAL_CALL characters( const OUString& aChars ) override;
+
+    // XML stream handling ----------------------------------------------------
+
+    /** Opens the fragment stream referred by the own fragment path. Derived
+        classes may provide specialized stream implementations. */
+    virtual css::uno::Reference< css::io::XInputStream >
+                        openFragmentStream() const;
+
+    // binary records ---------------------------------------------------------
+
+    virtual const RecordInfo* getRecordInfos() const;
+
+protected:
+    explicit            FragmentHandler( XmlFilterBase& rFilter, const OUString& rFragmentPath, RelationsRef xRelations );
+};
+
+typedef ::rtl::Reference< FragmentHandler > FragmentHandlerRef;
+
+
+} // namespace oox::core
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/oox/core/fragmenthandler2.hxx b/include/oox/core/fragmenthandler2.hxx
new file mode 100644
index 0000000000..05b2b2d0be
--- /dev/null
+++ b/include/oox/core/fragmenthandler2.hxx
@@ -0,0 +1,115 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_FRAGMENTHANDLER2_HXX
+#define INCLUDED_OOX_CORE_FRAGMENTHANDLER2_HXX
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <oox/core/contexthandler.hxx>
+#include <oox/core/contexthandler2.hxx>
+#include <oox/core/fragmenthandler.hxx>
+#include <oox/dllapi.h>
+#include <rtl/ref.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace com::sun::star {
+    namespace xml::sax { class XFastAttributeList; }
+    namespace xml::sax { class XFastContextHandler; }
+}
+
+namespace oox {
+    class AttributeList;
+    class SequenceInputStream;
+}
+
+namespace oox::core {
+
+class XmlFilterBase;
+
+class OOX_DLLPUBLIC FragmentHandler2 : public FragmentHandler, public ContextHandler2Helper
+{
+public:
+    explicit            FragmentHandler2(
+                            XmlFilterBase& rFilter,
+                            const OUString& rFragmentPath,
+                            bool bEnableTrimSpace = true );
+    virtual             ~FragmentHandler2() override;
+
+    FragmentHandler2(FragmentHandler2 const &) = default;
+    FragmentHandler2(FragmentHandler2 &&) = default;
+    FragmentHandler2 & operator =(FragmentHandler2 const &) = delete; // due to FragmentHandler
+    FragmentHandler2 & operator =(FragmentHandler2 &&) = delete; // due to FragmentHandler
+
+    // resolve ambiguity from base classes
+    virtual void SAL_CALL acquire() noexcept override { FragmentHandler::acquire(); }
+    virtual void SAL_CALL release() noexcept override { FragmentHandler::release(); }
+
+    // com.sun.star.xml.sax.XFastContextHandler interface ---------------------
+
+    virtual css::uno::Reference< css::xml::sax::XFastContextHandler > SAL_CALL
+                        createFastChildContext(
+                            sal_Int32 nElement,
+                            const css::uno::Reference< css::xml::sax::XFastAttributeList >& rxAttribs ) final override;
+
+    virtual void SAL_CALL startFastElement(
+                            sal_Int32 nElement,
+                            const css::uno::Reference< css::xml::sax::XFastAttributeList >& rxAttribs ) final override;
+
+    virtual void SAL_CALL characters( const OUString& rChars ) final override;
+
+    virtual void SAL_CALL endFastElement( sal_Int32 nElement ) final override;
+
+    // com.sun.star.xml.sax.XFastDocumentHandler interface --------------------
+
+    virtual void SAL_CALL startDocument() override;
+
+    virtual void SAL_CALL endDocument() override;
+
+    // oox.core.ContextHandler interface --------------------------------------
+
+    virtual ContextHandlerRef createRecordContext( sal_Int32 nRecId, SequenceInputStream& rStrm ) override;
+    virtual void        startRecord( sal_Int32 nRecId, SequenceInputStream& rStrm ) override;
+    virtual void        endRecord( sal_Int32 nRecId ) override;
+
+    // oox.core.ContextHandler2Helper interface -------------------------------
+
+    virtual ContextHandlerRef onCreateContext( sal_Int32 nElement, const AttributeList& rAttribs ) override;
+    virtual void        onStartElement( const AttributeList& rAttribs ) override;
+    virtual void        onCharacters( const OUString& rChars ) override;
+    virtual void        onEndElement() override;
+
+    virtual ContextHandlerRef onCreateRecordContext( sal_Int32 nRecId, SequenceInputStream& rStrm ) override;
+    virtual void        onStartRecord( SequenceInputStream& rStrm ) override;
+    virtual void        onEndRecord() override;
+
+    // oox.core.FragmentHandler2 interface ------------------------------------
+
+    virtual void        initializeImport();
+    virtual void        finalizeImport();
+};
+
+typedef ::rtl::Reference< FragmentHandler2 > FragmentHandler2Ref;
+
+
+} // namespace oox::core
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/oox/core/recordparser.hxx b/include/oox/core/recordparser.hxx
new file mode 100644
index 0000000000..d8525ac8e5
--- /dev/null
+++ b/include/oox/core/recordparser.hxx
@@ -0,0 +1,88 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_RECORDPARSER_HXX
+#define INCLUDED_OOX_CORE_RECORDPARSER_HXX
+
+#include <map>
+#include <memory>
+
+#include <oox/helper/binaryinputstream.hxx>
+#include <oox/core/fragmenthandler.hxx>
+#include <rtl/ref.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace oox {
+namespace core {
+
+namespace prv {
+    class ContextStack;
+    class Locator;
+}
+
+
+struct RecordInputSource
+{
+    BinaryInputStreamRef mxInStream;
+    OUString     maSystemId;
+};
+
+
+class RecordParser final
+{
+public:
+                        RecordParser();
+                        ~RecordParser();
+
+    void                setFragmentHandler( const ::rtl::Reference< FragmentHandler >& rxHandler );
+
+    /// @throws css::xml::sax::SAXException
+    /// @throws css::io::IOException
+    /// @throws css::uno::RuntimeException
+    void                parseStream( const RecordInputSource& rInputSource );
+
+    const RecordInputSource& getInputSource() const { return maSource; }
+
+private:
+    /** Returns a RecordInfo struct that contains the passed record identifier
+        as context start identifier. */
+    const RecordInfo*   getStartRecordInfo( sal_Int32 nRecId ) const;
+    /** Returns a RecordInfo struct that contains the passed record identifier
+        as context end identifier. */
+    const RecordInfo*   getEndRecordInfo( sal_Int32 nRecId ) const;
+
+private:
+    typedef ::std::map< sal_Int32, RecordInfo > RecordInfoMap;
+
+    RecordInputSource   maSource;
+    ::rtl::Reference< FragmentHandler > mxHandler;
+    ::rtl::Reference< prv::Locator > mxLocator;
+    ::std::unique_ptr< prv::ContextStack > mxStack;
+    RecordInfoMap       maStartMap;
+    RecordInfoMap       maEndMap;
+};
+
+
+} // namespace core
+} // namespace oox
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/oox/core/relations.hxx b/include/oox/core/relations.hxx
new file mode 100644
index 0000000000..b8a6580648
--- /dev/null
+++ b/include/oox/core/relations.hxx
@@ -0,0 +1,120 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_RELATIONS_HXX
+#define INCLUDED_OOX_CORE_RELATIONS_HXX
+
+#include <cstddef>
+#include <map>
+#include <memory>
+#include <string_view>
+
+#include <oox/dllapi.h>
+#include <rtl/ustring.hxx>
+
+namespace oox::core {
+
+
+/** Expands to an OUString containing an 'officeDocument' transitional relation type created
+    from the passed literal(!) ASCII(!) character array. */
+#define CREATE_OFFICEDOC_RELATION_TYPE( ascii ) \
+    ( u"http://schemas.openxmlformats.org/officeDocument/2006/relationships/" ascii ""_ustr )
+
+/** Expands to an OUString containing an 'officeDocument' strict relation type created
+    from the passed literal(!) ASCII(!) character array. */
+#define CREATE_OFFICEDOC_RELATION_TYPE_STRICT( ascii ) \
+    ( "http://purl.oclc.org/ooxml/officeDocument/relationships/" ascii )
+
+/** Expands to an OUString containing an MS Office specific relation type
+    created from the passed literal(!) ASCII(!) character array. */
+#define CREATE_MSOFFICE_RELATION_TYPE( ascii ) \
+    ( u"http://schemas.microsoft.com/office/2006/relationships/" ascii )
+
+#define CREATE_XL_CONTENT_TYPE( ascii ) \
+    ( "application/vnd.openxmlformats-officedocument.spreadsheetml." ascii "+xml" )
+
+struct Relation
+{
+    OUString     maId;
+    OUString     maType;
+    OUString     maTarget;
+    bool                mbExternal;
+
+    Relation() : mbExternal( false ) {}
+};
+
+
+class Relations;
+typedef std::shared_ptr< Relations > RelationsRef;
+
+class OOX_DLLPUBLIC Relations
+{
+public:
+    explicit            Relations( OUString aFragmentPath );
+
+    size_t size() const { return maMap.size(); }
+    size_t count( const OUString& rId ) const { return maMap.count( rId ); }
+    ::std::map< OUString, Relation >::const_iterator begin() const
+    {
+        return maMap.begin();
+    }
+    ::std::map< OUString, Relation >::const_iterator end() const
+    {
+        return maMap.end();
+    }
+    template<class... Args>
+    void emplace(Args&&... args)
+    {
+        maMap.emplace(std::forward<Args>(args)...);
+    }
+
+    /** Returns the path of the fragment this relations collection is related to. */
+    const OUString& getFragmentPath() const { return maFragmentPath; }
+
+    /** Returns the relation with the passed relation identifier. */
+    const Relation*     getRelationFromRelId( const OUString& rId ) const;
+    /** Returns the first relation with the passed type. */
+    const Relation*     getRelationFromFirstType( std::u16string_view rType ) const;
+    /** Finds all relations associated with the passed type. */
+    RelationsRef        getRelationsFromTypeFromOfficeDoc( std::u16string_view rType ) const;
+
+    /** Returns the external target of the relation with the passed relation identifier. */
+    OUString     getExternalTargetFromRelId( const OUString& rRelId ) const;
+    /** Returns the internal target of the relation with the passed relation identifier. */
+    OUString     getInternalTargetFromRelId( const OUString& rRelId ) const;
+
+    /** Returns the full fragment path for the target of the passed relation. */
+    OUString     getFragmentPathFromRelation( const Relation& rRelation ) const;
+    /** Returns the full fragment path for the passed relation identifier. */
+    OUString     getFragmentPathFromRelId( const OUString& rRelId ) const;
+    /** Returns the full fragment path for the first relation of the passed type. */
+    OUString     getFragmentPathFromFirstType( std::u16string_view rType ) const;
+    OUString     getFragmentPathFromFirstTypeFromOfficeDoc( std::u16string_view rType ) const;
+
+private:
+    ::std::map< OUString, Relation > maMap;
+    OUString     maFragmentPath;
+};
+
+
+} // namespace oox::core
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/oox/core/relationshandler.hxx b/include/oox/core/relationshandler.hxx
new file mode 100644
index 0000000000..ec8f77e92d
--- /dev/null
+++ b/include/oox/core/relationshandler.hxx
@@ -0,0 +1,58 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_RELATIONSHANDLER_HXX
+#define INCLUDED_OOX_CORE_RELATIONSHANDLER_HXX
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <oox/core/fragmenthandler.hxx>
+#include <oox/core/relations.hxx>
+#include <sal/types.h>
+
+namespace com::sun::star {
+    namespace xml::sax { class XFastAttributeList; }
+    namespace xml::sax { class XFastContextHandler; }
+}
+
+namespace oox::core {
+
+class XmlFilterBase;
+
+class RelationsFragment final : public FragmentHandler
+{
+public:
+    explicit            RelationsFragment(
+                            XmlFilterBase& rFilter,
+                            const RelationsRef& xRelations );
+
+    virtual css::uno::Reference< css::xml::sax::XFastContextHandler > SAL_CALL
+                        createFastChildContext(
+                            sal_Int32 nElement,
+                            const css::uno::Reference< css::xml::sax::XFastAttributeList >& rxAttribs ) override;
+
+private:
+    RelationsRef        mxRelations;
+};
+
+
+} // namespace oox::core
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/oox/core/xmlfilterbase.hxx b/include/oox/core/xmlfilterbase.hxx
new file mode 100644
index 0000000000..0c6226452d
--- /dev/null
+++ b/include/oox/core/xmlfilterbase.hxx
@@ -0,0 +1,290 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_OOX_CORE_XMLFILTERBASE_HXX
+#define INCLUDED_OOX_CORE_XMLFILTERBASE_HXX
+
+#include <memory>
+#include <string_view>
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <oox/core/filterbase.hxx>
+#include <oox/core/relations.hxx>
+#include <oox/dllapi.h>
+#include <oox/helper/storagebase.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace com::sun::star {
+    namespace document { class XDocumentProperties; }
+    namespace io { class XInputStream; }
+    namespace io { class XOutputStream; }
+    namespace io { class XStream; }
+    namespace text { class XText; }
+    namespace text { class XTextCursor; }
+    namespace text { class XTextField; }
+    namespace uno { class XComponentContext; }
+    namespace xml::dom { class XDocument; }
+    namespace xml::sax { class XFastSAXSerializable; }
+}
+
+namespace oox {
+    namespace drawingml { class Theme; }
+    namespace drawingml::chart { class ChartConverter; }
+    namespace drawingml::table {
+        class TableStyleList;
+        typedef std::shared_ptr< TableStyleList > TableStyleListPtr;
+    }
+    namespace vml { class Drawing; }
+}
+
+namespace rtl { template <class reference_type> class Reference; }
+
+namespace sax_fastparser {
+    class FastSerializerHelper;
+
+    typedef std::shared_ptr< FastSerializerHelper > FSHelperPtr;
+}
+
+namespace utl { class MediaDescriptor; }
+
+namespace oox::drawingml
+{
+class Shape;
+}
+
+namespace oox::core {
+
+class FragmentHandler;
+class FastParser;
+
+struct XmlFilterBaseImpl;
+
+using ShapePairs
+    = std::map<std::shared_ptr<drawingml::Shape>, css::uno::Reference<css::drawing::XShape>>;
+using NamedShapePairs = std::map<OUString, ShapePairs>;
+
+class OOX_DLLPUBLIC XmlFilterBase : public FilterBase
+{
+public:
+    /// @throws css::uno::RuntimeException
+    explicit            XmlFilterBase(
+                            const css::uno::Reference< css::uno::XComponentContext >& rxContext );
+
+    virtual             ~XmlFilterBase() override;
+
+    /** Has to be implemented by each filter, returns the current theme. */
+    virtual const ::oox::drawingml::Theme* getCurrentTheme() const = 0;
+
+    /** May be implemented by filters which handle Diagrams, default returns empty ptr */
+    virtual std::shared_ptr<::oox::drawingml::Theme> getCurrentThemePtr() const;
+
+    /** Has to be implemented by each filter to return the collection of VML shapes. */
+    virtual ::oox::vml::Drawing* getVmlDrawing() = 0;
+
+    /** Has to be implemented by each filter, returns a filter-specific chart
+        converter object, that should be global per imported document. */
+    virtual ::oox::drawingml::chart::ChartConverter* getChartConverter() = 0;
+
+    /** Helper to switch chart data table - specifically for xlsx imports */
+    virtual void useInternalChartDataTable( bool /*bInternal*/ ) { }
+
+    /** Has to be implemented by each filter to return the table style list. */
+    virtual ::oox::drawingml::table::TableStyleListPtr getTableStyles() = 0;
+
+
+    OUString getFragmentPathFromFirstTypeFromOfficeDoc( std::u16string_view rPart );
+
+    /** Imports a fragment using the passed fragment handler, which contains
+        the full path to the fragment stream.
+
+        @return  True, if the fragment could be imported.
+     */
+    bool importFragment( const rtl::Reference<FragmentHandler>& rxHandler );
+    bool importFragment( const rtl::Reference<FragmentHandler>& rxHandler, FastParser& rParser );
+
+    /** Imports a fragment into an xml::dom::XDocument.
+
+        @param rFragmentPath path to fragment
+
+        @return a non-empty reference to the XDocument, if the
+        fragment could be imported.
+     */
+    css::uno::Reference< css::xml::dom::XDocument> importFragment( const OUString& rFragmentPath );
+
+    /** Imports a fragment from an xml::dom::XDocument using the
+        passed fragment handler
+
+        @param rxHandler fragment handler; path to fragment is
+        ignored, input source is the rxSerializer
+
+        @param rxSerializer usually retrieved from a
+        xml::dom::XDocument, will get serialized into rxHandler
+
+        @return true, if the fragment could be imported.
+     */
+    bool importFragment( const ::rtl::Reference< FragmentHandler >& rxHandler,
+                         const css::uno::Reference< css::xml::sax::XFastSAXSerializable >& rxSerializer );
+
+    /** Imports the relations fragment associated with the specified fragment.
+
+        @return  The relations collection of the specified fragment.
+     */
+    RelationsRef        importRelations( const OUString& rFragmentPath );
+
+    /** Adds new relation.
+
+        @param rType
+            Relation type.
+
+        @param rTarget
+            Relation target.
+
+        @return  Added relation Id.
+     */
+    OUString     addRelation( const OUString& rType, std::u16string_view rTarget );
+
+    /** Adds new relation to part's relations.
+
+        @param rPartName
+            Part name the relations are related to. The relations will be stored in <rPartName::path>/_rels/<rPartName::name>.rels.
+
+        @param rType
+            Relation type.
+
+        @param rTarget
+            Relation target.
+
+        @return  Added relation Id.
+     */
+    OUString     addRelation( const css::uno::Reference< css::io::XOutputStream >& rOutputStream, const OUString& rType, std::u16string_view rTarget, bool bExternal = false );
+
+    /** Opens and returns the specified output stream from the base storage with specified media type.
+
+        @param rStreamName
+            The name of the embedded storage stream. The name may contain
+            slashes to open streams from embedded substorages. If base stream
+            access has been enabled in the storage, the base stream can be
+            accessed by passing an empty string as stream name.
+
+        @param rMediaType
+            The media type string, used in [Content_Types].xml stream in base
+            storage.
+
+        @return The opened output stream.
+     */
+    css::uno::Reference< css::io::XOutputStream >
+                        openFragmentStream(
+                            const OUString& rStreamName,
+                            const OUString& rMediaType );
+
+    /** Opens specified output stream from the base storage with specified
+        media type and returns new fast serializer for that stream.
+
+        @param rStreamName
+            The name of the embedded storage stream. The name may contain
+            slashes to open streams from embedded substorages. If base stream
+            access has been enabled in the storage, the base stream can be
+            accessed by passing an empty string as stream name.
+
+        @param rMediaType
+            The media type string, used in [Content_Types].xml stream in base
+            storage.
+
+        @return newly created serializer helper.
+     */
+    ::sax_fastparser::FSHelperPtr
+                        openFragmentStreamWithSerializer(
+                            const OUString& rStreamName,
+                            const OUString& rMediaType );
+
+    /** Returns new unique ID for exported document.
+
+        @return newly created ID.
+     */
+    sal_Int32 GetUniqueId() { return mnMaxDocId++; }
+
+    sal_Int32 GetMaxDocId() { return mnMaxDocId; }
+
+    void SetMaxDocId(sal_Int32 maxDocId) { mnMaxDocId = maxDocId; }
+
+    /** Write the document properties into into the current OPC package.
+
+        @param xProperties  The document properties to export.
+     */
+    void exportDocumentProperties( const css::uno::Reference< css::document::XDocumentProperties >& xProperties, bool bSecurityOptOpenReadOnly );
+
+    /** Write the customXml entries we are preserving (xlsx and pptx only). */
+    void exportCustomFragments();
+
+    /** Read the document properties and also the customXml entries (xlsx and pptx only). */
+    void importDocumentProperties();
+
+    static void putPropertiesToDocumentGrabBag(const css::uno::Reference<css::lang::XComponent>& xDstDoc,
+                                               const comphelper::SequenceAsHashMap& rProperties);
+
+    static FastParser* createParser();
+
+    bool isMSO2007Document() const;
+    bool isMSODocument() const;
+
+    /// Signal that an MSO 2007-created SmartArt was found, need to warn the
+    /// user about it.
+    void setMissingExtDrawing();
+
+    void setDiagramFontHeights(NamedShapePairs* pDiagramFontHeights);
+    NamedShapePairs* getDiagramFontHeights();
+
+    void checkDocumentProperties(
+            const css::uno::Reference<css::document::XDocumentProperties>& xDocProps);
+
+    OUString getNamespaceURL(sal_Int32 nNSID) const;
+
+protected:
+    virtual css::uno::Reference< css::io::XInputStream >
+        implGetInputStream( utl::MediaDescriptor& rMediaDesc ) const override;
+
+    virtual css::uno::Reference< css::io::XStream >
+        implGetOutputStream( utl::MediaDescriptor& rMediaDesc ) const override;
+
+    virtual bool implFinalizeExport( utl::MediaDescriptor& rMediaDescriptor ) override;
+
+private:
+    virtual StorageRef  implCreateStorage(
+                            const css::uno::Reference< css::io::XInputStream >& rxInStream ) const override;
+    virtual StorageRef  implCreateStorage(
+                            const css::uno::Reference< css::io::XStream >& rxOutStream ) const override;
+
+    void importCustomFragments(css::uno::Reference<css::embed::XStorage> const & xDocumentStorage);
+
+private:
+    ::std::unique_ptr< XmlFilterBaseImpl > mxImpl;
+    sal_Int32 mnRelId;
+    sal_Int32 mnMaxDocId;
+    bool mbMSO2007;
+    bool mbMSO;
+protected:
+    bool mbMissingExtDrawing;
+};
+
+} // namespace oox::core
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */