comphelper/source/misc/accimplaccess.cxx

   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 #include <comphelper/accimplaccess.hxx>
  21 #include <com/sun/star/accessibility/XAccessible.hpp>
  22 #include <com/sun/star/accessibility/XAccessibleContext.hpp>
  23 #include <cppuhelper/typeprovider.hxx>
  24 #include <osl/diagnose.h>
  25
  26 #include <set>
  27 #include <string.h>
  28
  29
  30 namespace comphelper
  31 {
  32
  33
  34     using ::com::sun::star::uno::Reference;
  35     using ::com::sun::star::uno::Sequence;
  36     using ::com::sun::star::uno::Exception;
  37     using ::com::sun::star::uno::UNO_QUERY;
  38     using ::com::sun::star::uno::RuntimeException;
  39     using ::com::sun::star::lang::XUnoTunnel;
  40     using ::com::sun::star::accessibility::XAccessible;
  41     using ::com::sun::star::accessibility::XAccessibleContext;
  42
  43     struct OAccImpl_Impl
  44     {
  45         Reference< XAccessible >    m_xAccParent;
  46         sal_Int64                   m_nForeignControlledStates;
  47     };
  48
  49     OAccessibleImplementationAccess::OAccessibleImplementationAccess( )
  50         :m_pImpl( new OAccImpl_Impl )
  51     {
  52     }
  53
  54
  55     OAccessibleImplementationAccess::~OAccessibleImplementationAccess( )
  56     {
  57         delete m_pImpl;
  58         m_pImpl = NULL;
  59     }
  60
  61
  62     Reference< XAccessible > OAccessibleImplementationAccess::implGetForeignControlledParent( ) const
  63     {
  64         return m_pImpl->m_xAccParent;
  65     }
  66
  67
  68     void OAccessibleImplementationAccess::setAccessibleParent( const Reference< XAccessible >& _rxAccParent )
  69     {
  70         m_pImpl->m_xAccParent = _rxAccParent;
  71     }
  72
  73
  74     sal_Int64 OAccessibleImplementationAccess::implGetForeignControlledStates( ) const
  75     {
  76         return m_pImpl->m_nForeignControlledStates;
  77     }
  78
  79
  80     void OAccessibleImplementationAccess::setStateBit( const sal_Int16 _nState, const bool _bSet )
  81     {
  82         OSL_ENSURE( _nState >= 0 && static_cast< sal_uInt16 >(_nState) < sizeof( sal_Int64 ) * 8, "OAccessibleImplementationAccess::setStateBit: no more bits (shutting down the universe now)!" );
  83
  84         sal_uInt64 nBitMask( 1 );
  85         nBitMask <<= _nState;
  86         if ( _bSet )
  87             m_pImpl->m_nForeignControlledStates |= nBitMask;
  88         else
  89             m_pImpl->m_nForeignControlledStates &= ~nBitMask;
  90     }
  91
  92     namespace { struct lcl_ImplId : public rtl::Static< ::cppu::OImplementationId, lcl_ImplId > {}; }
  93
  94
  95     const Sequence< sal_Int8 > OAccessibleImplementationAccess::getUnoTunnelImplementationId()
  96     {
  97         ::cppu::OImplementationId &rID = lcl_ImplId::get();
  98         return rID.getImplementationId();
  99     }
 100
 101
 102     sal_Int64 SAL_CALL OAccessibleImplementationAccess::getSomething( const Sequence< sal_Int8 >& _rIdentifier ) throw (RuntimeException, std::exception)
 103     {
 104         sal_Int64 nReturn( 0 );
 105
 106         if  (   ( _rIdentifier.getLength() == 16 )
 107             &&  ( 0 == memcmp( getUnoTunnelImplementationId().getConstArray(), _rIdentifier.getConstArray(), 16 ) )
 108             )
 109             nReturn = reinterpret_cast< sal_Int64 >( this );
 110
 111         return nReturn;
 112     }
 113
 114
 115     OAccessibleImplementationAccess* OAccessibleImplementationAccess::getImplementation( const Reference< XAccessibleContext >& _rxComponent )
 116     {
 117         OAccessibleImplementationAccess* pImplementation = NULL;
 118         try
 119         {
 120             Reference< XUnoTunnel > xTunnel( _rxComponent, UNO_QUERY );
 121             if ( xTunnel.is() )
 122             {
 123                 pImplementation = reinterpret_cast< OAccessibleImplementationAccess* >(
 124                         xTunnel->getSomething( getUnoTunnelImplementationId() ) );
 125             }
 126         }
 127         catch( const Exception& )
 128         {
 129             OSL_FAIL( "OAccessibleImplementationAccess::setAccessibleParent: caught an exception while retrieving the implementation!" );
 130         }
 131         return pImplementation;
 132     }
 133
 134
 135     bool OAccessibleImplementationAccess::setAccessibleParent(
 136             const Reference< XAccessibleContext >& _rxComponent, const Reference< XAccessible >& _rxNewParent )
 137     {
 138         OAccessibleImplementationAccess* pImplementation = getImplementation( _rxComponent );
 139
 140         if ( pImplementation )
 141             pImplementation->setAccessibleParent( _rxNewParent );
 142
 143         return ( NULL != pImplementation );
 144     }
 145
 146
 147 }   // namespace comphelper
 148
 149
 150
 151 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */