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path: root/include/sfx2/DocumentMetadataAccess.hxx
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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/.
 *
 * 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_SFX2_DOCUMENTMETADATAACCESS_HXX
#define INCLUDED_SFX2_DOCUMENTMETADATAACCESS_HXX

#include <sal/config.h>

#include <sfx2/dllapi.h>

#include <com/sun/star/rdf/XDocumentMetadataAccess.hpp>

#include <cppuhelper/implbase.hxx>

#include <memory>


/** Implementation of the interface com.sun.star.rdf.XDocumentMetadataAccess

    This is not a service only because it needs some kind of XML ID registry
    from the document, and i do not like defining an API for that.
    Also, the implementation does _no_ locking, so make sure access is
    protected externally.
 */

namespace com::sun::star::embed {
    class XStorage;
}
namespace com::sun::star::frame {
    class XModel;
}

namespace com::sun::star::uno { class XComponentContext; }

class SfxObjectShell;

namespace sfx2 {


/** create a base URI for loading metadata from an ODF (sub)document.

    @param i_xContext   component context
    @param i_xModel     model of the document (required if no URI is provided)
    @param i_rPkgURI    the URI for the package
    @param i_rSubDocument   (optional) path of the subdocument in package

    @return a base URI suitable for XDocumentMetadataAccess::loadFromStorage
 */
css::uno::Reference< css::rdf::XURI> SFX2_DLLPUBLIC
createBaseURI(
    css::uno::Reference<css::uno::XComponentContext> const & i_xContext,
    css::uno::Reference<css::frame::XModel> const & i_xModel,
    OUString const & i_rPkgURI,
    std::u16string_view i_rSubDocument = std::u16string_view());


struct DocumentMetadataAccess_Impl;

class DocumentMetadataAccess final :
    public cppu::WeakImplHelper<css::rdf::XDocumentMetadataAccess>
{
    DocumentMetadataAccess(const DocumentMetadataAccess&) = delete;
    DocumentMetadataAccess& operator=( const DocumentMetadataAccess& ) = delete;
public:
    explicit DocumentMetadataAccess(css::uno::Reference< css::uno::XComponentContext > const & i_xContext,
                SfxObjectShell const & i_rRegistrySupplier,
                OUString const & i_rBaseURI);
    // N.B.: in contrast to previous, this constructor does _not_ initialize!
    //       caller must immediately call loadFromStorage/Medium!
    explicit DocumentMetadataAccess(css::uno::Reference< css::uno::XComponentContext > const & i_xContext,
                SfxObjectShell const & i_rRegistrySupplier);
    virtual ~DocumentMetadataAccess() override;

    // css::rdf::XNode:
    virtual OUString SAL_CALL getStringValue() override;

    // css::rdf::XURI:
    virtual OUString SAL_CALL getNamespace() override;
    virtual OUString SAL_CALL getLocalName() override;

    // css::rdf::XRepositorySupplier:
    virtual css::uno::Reference<
        css::rdf::XRepository > SAL_CALL getRDFRepository() override;

    // css::rdf::XDocumentMetadataAccess:
    virtual css::uno::Reference<
                css::rdf::XMetadatable > SAL_CALL
        getElementByMetadataReference(
            const css::beans::StringPair & i_rReference) override;
    virtual css::uno::Reference< css::rdf::XMetadatable > SAL_CALL
        getElementByURI(const css::uno::Reference< css::rdf::XURI > & i_xURI) override;
    virtual css::uno::Sequence< css::uno::Reference< css::rdf::XURI > > SAL_CALL getMetadataGraphsWithType(
            const css::uno::Reference< css::rdf::XURI > & i_xType) override;
    virtual css::uno::Reference< css::rdf::XURI> SAL_CALL
        addMetadataFile(const OUString & i_rFileName,
            const css::uno::Sequence< css::uno::Reference< css::rdf::XURI > > & i_rTypes) override;
    virtual css::uno::Reference< css::rdf::XURI> SAL_CALL
        importMetadataFile(::sal_Int16 i_Format,
            const css::uno::Reference< css::io::XInputStream > & i_xInStream,
            const OUString & i_rFileName,
            const css::uno::Reference< css::rdf::XURI > & i_xBaseURI,
            const css::uno::Sequence< css::uno::Reference< css::rdf::XURI > > & i_rTypes) override;
    virtual void SAL_CALL removeMetadataFile(
            const css::uno::Reference<
                css::rdf::XURI > & i_xGraphName) override;
    virtual void SAL_CALL addContentOrStylesFile(
            const OUString & i_rFileName) override;
    virtual void SAL_CALL removeContentOrStylesFile(
            const OUString & i_rFileName) override;

    virtual void SAL_CALL loadMetadataFromStorage(
            const css::uno::Reference<
                css::embed::XStorage > & i_xStorage,
            const css::uno::Reference<
                css::rdf::XURI > & i_xBaseURI,
            const css::uno::Reference<
                css::task::XInteractionHandler> & i_xHandler) override;
    virtual void SAL_CALL storeMetadataToStorage(
            const css::uno::Reference<
                css::embed::XStorage > & i_xStorage) override;
    virtual void SAL_CALL loadMetadataFromMedium(
            const css::uno::Sequence<
                css::beans::PropertyValue > & i_rMedium) override;
    virtual void SAL_CALL storeMetadataToMedium(
            const css::uno::Sequence<
                css::beans::PropertyValue > & i_rMedium) override;

private:
    std::unique_ptr<DocumentMetadataAccess_Impl> m_pImpl;
};

} // namespace sfx2

#endif // INCLUDED_SFX2_DOCUMENTMETADATAACCESS_HXX

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