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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 _COMPHELPER_SERVICEHELPER_HXX_
      21             : #define _COMPHELPER_SERVICEHELPER_HXX_
      22             : 
      23             : #include <rtl/uuid.h>
      24             : #include <rtl/instance.hxx>
      25             : #include <com/sun/star/uno/Sequence.hxx>
      26             : 
      27        1439 : class UnoTunnelIdInit
      28             : {
      29             : private:
      30             :     ::com::sun::star::uno::Sequence< sal_Int8 > m_aSeq;
      31             : public:
      32        1439 :     UnoTunnelIdInit() : m_aSeq(16)
      33             :     {
      34        1439 :         rtl_createUuid( (sal_uInt8*)m_aSeq.getArray(), 0, sal_True );
      35        1439 :     }
      36     1723014 :     const ::com::sun::star::uno::Sequence< sal_Int8 >& getSeq() const { return m_aSeq; }
      37             : };
      38             : 
      39             : /** the UNO3_GETIMPLEMENTATION_* macros  implement a static helper function
      40             :     that gives access to your implementation for a given interface reference,
      41             :     if possible.
      42             : 
      43             :     Example:
      44             :         MyClass* pClass = MyClass::getImplementation( xRef );
      45             : 
      46             :     Usage:
      47             :         Put a UNO3_GETIMPLEMENTATION_DECL( classname ) inside your class
      48             :         definitian and UNO3_GETIMPLEMENTATION_IMPL( classname ) inside
      49             :         your cxx file. Your class must inherit ::com::sun::star::uno::XUnoTunnel
      50             :         and export it with queryInterface. Implementation of XUnoTunnel is
      51             :         done by this macro.
      52             : */
      53             : #define UNO3_GETIMPLEMENTATION_DECL( classname ) \
      54             :     static const ::com::sun::star::uno::Sequence< sal_Int8 > & getUnoTunnelId() throw(); \
      55             :     static classname* getImplementation( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& xInt ); \
      56             :     virtual sal_Int64 SAL_CALL getSomething( const ::com::sun::star::uno::Sequence< sal_Int8 >& aIdentifier ) throw(::com::sun::star::uno::RuntimeException);
      57             : 
      58             : #define UNO3_GETIMPLEMENTATION_BASE_IMPL( classname ) \
      59             : namespace \
      60             : { \
      61             :     class the##classname##UnoTunnelId : public rtl::Static< UnoTunnelIdInit, the##classname##UnoTunnelId> {}; \
      62             : } \
      63             : const ::com::sun::star::uno::Sequence< sal_Int8 > & classname::getUnoTunnelId() throw() \
      64             : { \
      65             :     return the##classname##UnoTunnelId::get().getSeq(); \
      66             : } \
      67             : \
      68             : classname* classname::getImplementation( const uno::Reference< uno::XInterface >& xInt ) \
      69             : { \
      70             :     ::com::sun::star::uno::Reference< ::com::sun::star::lang::XUnoTunnel > xUT( xInt, ::com::sun::star::uno::UNO_QUERY ); \
      71             :     if( xUT.is() ) \
      72             :         return reinterpret_cast<classname*>(sal::static_int_cast<sal_IntPtr>(xUT->getSomething( classname::getUnoTunnelId() ))); \
      73             :     else \
      74             :         return NULL; \
      75             : }
      76             : 
      77             : #define UNO3_GETIMPLEMENTATION_IMPL( classname )\
      78             : UNO3_GETIMPLEMENTATION_BASE_IMPL(classname)\
      79             : sal_Int64 SAL_CALL classname::getSomething( const ::com::sun::star::uno::Sequence< sal_Int8 >& rId ) throw(::com::sun::star::uno::RuntimeException) \
      80             : { \
      81             :     if( rId.getLength() == 16 && 0 == memcmp( getUnoTunnelId().getConstArray(), \
      82             :                                                          rId.getConstArray(), 16 ) ) \
      83             :     { \
      84             :         return sal::static_int_cast<sal_Int64>(reinterpret_cast<sal_IntPtr>(this)); \
      85             :     } \
      86             :     return 0; \
      87             : }
      88             : 
      89             : #define UNO3_GETIMPLEMENTATION2_IMPL( classname, baseclass )\
      90             : UNO3_GETIMPLEMENTATION_BASE_IMPL(classname)\
      91             : sal_Int64 SAL_CALL classname::getSomething( const ::com::sun::star::uno::Sequence< sal_Int8 >& rId ) throw(::com::sun::star::uno::RuntimeException) \
      92             : { \
      93             :     if( rId.getLength() == 16 && 0 == memcmp( getUnoTunnelId().getConstArray(), \
      94             :                                                          rId.getConstArray(), 16 ) ) \
      95             :     { \
      96             :         return sal::static_int_cast<sal_Int64>(reinterpret_cast<sal_IntPtr>(this)); \
      97             :     } \
      98             :     else \
      99             :     { \
     100             :         return baseclass::getSomething( rId ); \
     101             :     } \
     102             : }
     103             : 
     104             : 
     105             : #endif // _COMPHELPER_SERVICEHELPER_HXX_
     106             : 
     107             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */