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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_OOX_OLE_OLESTORAGE_HXX
      21             : #define INCLUDED_OOX_OLE_OLESTORAGE_HXX
      22             : 
      23             : #include <oox/helper/storagebase.hxx>
      24             : 
      25             : namespace com { namespace sun { namespace star {
      26             :     namespace container { class XNameContainer; }
      27             :     namespace uno { class XComponentContext; }
      28             : } } }
      29             : 
      30             : namespace oox {
      31             : namespace ole {
      32             : 
      33             : 
      34             : 
      35             : /** Implements stream access for binary OLE storages. */
      36             : class OOX_DLLPUBLIC OleStorage : public StorageBase
      37             : {
      38             : public:
      39             :     explicit            OleStorage(
      40             :                             const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& rxContext,
      41             :                             const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& rxInStream,
      42             :                             bool bBaseStreamAccess );
      43             : 
      44             :     explicit            OleStorage(
      45             :                             const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& rxContext,
      46             :                             const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& rxOutStream,
      47             :                             bool bBaseStreamAccess );
      48             : 
      49             :     virtual             ~OleStorage();
      50             : 
      51             : private:
      52             :     explicit            OleStorage(
      53             :                             const OleStorage& rParentStorage,
      54             :                             const ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameContainer >& rxStorage,
      55             :                             const OUString& rElementName,
      56             :                             bool bReadOnly );
      57             :     explicit            OleStorage(
      58             :                             const OleStorage& rParentStorage,
      59             :                             const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& rxOutStream,
      60             :                             const OUString& rElementName );
      61             : 
      62             :     /** Initializes the API storage object for input. */
      63             :     void                initStorage( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& rxInStream );
      64             :     /** Initializes the API storage object for input/output. */
      65             :     void                initStorage( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& rxOutStream );
      66             : 
      67             :     /** Returns true, if the object represents a valid storage. */
      68             :     virtual bool        implIsStorage() const SAL_OVERRIDE;
      69             : 
      70             :     /** Returns the com.sun.star.embed.XStorage interface of the current storage.
      71             : 
      72             :         @attention
      73             :             This function is not implemented for binary OLE storages.
      74             :      */
      75             :     virtual ::com::sun::star::uno::Reference< ::com::sun::star::embed::XStorage >
      76             :                         implGetXStorage() const SAL_OVERRIDE;
      77             : 
      78             :     /** Returns the names of all elements of this storage. */
      79             :     virtual void        implGetElementNames( ::std::vector< OUString >& orElementNames ) const SAL_OVERRIDE;
      80             : 
      81             :     /** Opens and returns the specified sub storage from the storage. */
      82             :     virtual StorageRef  implOpenSubStorage( const OUString& rElementName, bool bCreateMissing ) SAL_OVERRIDE;
      83             : 
      84             :     /** Opens and returns the specified input stream from the storage. */
      85             :     virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >
      86             :                         implOpenInputStream( const OUString& rElementName ) SAL_OVERRIDE;
      87             : 
      88             :     /** Opens and returns the specified output stream from the storage. */
      89             :     virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream >
      90             :                         implOpenOutputStream( const OUString& rElementName ) SAL_OVERRIDE;
      91             : 
      92             :     /** Commits the current storage. */
      93             :     virtual void        implCommit() const SAL_OVERRIDE;
      94             : 
      95             : private:
      96             :     ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >
      97             :                         mxContext;          ///< Component context with service manager.
      98             :     ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameContainer >
      99             :                         mxStorage;          ///< Access to elements of this sub storage.
     100             :     const OleStorage*   mpParentStorage;    ///< Parent OLE storage that contains this storage.
     101             : };
     102             : 
     103             : 
     104             : 
     105             : } // namespace ole
     106         246 : } // namespace oox
     107             : 
     108             : #endif
     109             : 
     110             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */