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| -rw-r--r-- | include/xmloff/xmlictxt.hxx | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/include/xmloff/xmlictxt.hxx b/include/xmloff/xmlictxt.hxx new file mode 100644 index 000000000..64927daf6 --- /dev/null +++ b/include/xmloff/xmlictxt.hxx @@ -0,0 +1,140 @@ +/* -*- 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_XMLOFF_XMLICTXT_HXX +#define INCLUDED_XMLOFF_XMLICTXT_HXX + +#include <sal/config.h> +#include <xmloff/dllapi.h> +#include <sal/types.h> +#include <com/sun/star/xml/sax/XFastContextHandler.hpp> +#include <com/sun/star/lang/XTypeProvider.hpp> +#include <rtl/ustring.hxx> +#include <xmloff/nmspmap.hxx> +#include <memory> + +namespace com::sun::star::xml::sax { class XAttributeList; } + +class SvXMLImport; + +class SvXMLImportContext; + +typedef rtl::Reference<SvXMLImportContext> SvXMLImportContextRef; + +/** +This class deliberately does not support XWeak, to improve performance when loading +large documents. +*/ +class XMLOFF_DLLPUBLIC SvXMLImportContext : public css::xml::sax::XFastContextHandler, + public css::lang::XTypeProvider + +{ + friend class SvXMLImport; + + oslInterlockedCount m_nRefCount; + SvXMLImport& mrImport; + sal_uInt16 mnPrefix; + OUString maLocalName; + bool mbPrefixAndLocalNameFilledIn; + std::unique_ptr<SvXMLNamespaceMap> m_pRewindMap; + + SAL_DLLPRIVATE std::unique_ptr<SvXMLNamespaceMap> TakeRewindMap() { return std::move(m_pRewindMap); } + SAL_DLLPRIVATE void PutRewindMap(std::unique_ptr<SvXMLNamespaceMap> p) { m_pRewindMap = std::move(p); } + +protected: + + SvXMLImport& GetImport() { return mrImport; } + const SvXMLImport& GetImport() const { return mrImport; } + +public: + + bool IsPrefixFilledIn() const { return mnPrefix != 0; } + sal_uInt16 GetPrefix() const { assert(mbPrefixAndLocalNameFilledIn && "those fields not filled, probably fast-parser context"); return mnPrefix; } + const OUString& GetLocalName() const { assert(mbPrefixAndLocalNameFilledIn && "those fields not filled, probably fast-parser context"); return maLocalName; } + + /** A contexts constructor does anything that is required if an element + * starts. Namespace processing has been done already. + * Note that virtual methods cannot be used inside constructors. Use + * StartElement instead if this is required. */ + SvXMLImportContext( SvXMLImport& rImport, sal_uInt16 nPrfx, + const OUString& rLName ); + + SvXMLImportContext( SvXMLImport& rImport ); + + /** A contexts destructor does anything that is required if an element + * ends. By default, nothing is done. + * Note that virtual methods cannot be used inside destructors. Use + * EndElement instead if this is required. */ + virtual ~SvXMLImportContext(); + + /** Create a children element context. By default, the import's + * CreateContext method is called to create a new default context. */ + virtual SvXMLImportContextRef CreateChildContext( sal_uInt16 nPrefix, + const OUString& rLocalName, + const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ); + + /** StartElement is called after a context has been constructed and + * before an elements context is parsed. It may be used for actions that + * require virtual methods. The default is to do nothing. */ + virtual void StartElement( const css::uno::Reference< css::xml::sax::XAttributeList >& xAttrList ); + + /** EndElement is called before a context will be destructed, but + * after an elements context has been parsed. It may be used for actions + * that require virtual methods. The default is to do nothing. */ + virtual void EndElement(); + + /** This method is called for all characters that are contained in the + * current element. The default is to ignore them. */ + virtual void Characters( const OUString& rChars ); + + // css::xml::sax::XFastContextHandler: + 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< 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; + + // XInterface + virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type& aType ) final override; + virtual void SAL_CALL acquire() throw () final override + { osl_atomic_increment(&m_nRefCount); } + virtual void SAL_CALL release() throw () final override + { if (osl_atomic_decrement(&m_nRefCount) == 0) delete this; } + + // XTypeProvider + virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes( ) final override; + virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId( ) final override; +}; + +#endif // INCLUDED_XMLOFF_XMLICTXT_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |