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
  25 #include <set>
  26 #include <string.h>
  27
  28
  29 namespace comphelper
  30 {
  31
  32
  33     using ::com::sun::star::uno::Reference;
  34     using ::com::sun::star::uno::Sequence;
  35     using ::com::sun::star::uno::Exception;
  36     using ::com::sun::star::uno::UNO_QUERY;
  37     using ::com::sun::star::uno::RuntimeException;
  38     using ::com::sun::star::lang::XUnoTunnel;
  39     using ::com::sun::star::accessibility::XAccessible;
  40     using ::com::sun::star::accessibility::XAccessibleContext;
  41
  42
  43     //= OAccImpl_Impl
  44
  45     struct OAccImpl_Impl
  46     {
  47         Reference< XAccessible >    m_xAccParent;
  48         sal_Int64                   m_nForeignControlledStates;
  49     };
  50
  51
  52
  53     //= OAccessibleImplementationAccess
  54
  55
  56     OAccessibleImplementationAccess::OAccessibleImplementationAccess( )
  57         :m_pImpl( new OAccImpl_Impl )
  58     {
  59     }
  60
  61
  62     OAccessibleImplementationAccess::~OAccessibleImplementationAccess( )
  63     {
  64         delete m_pImpl;
  65         m_pImpl = NULL;
  66     }
  67
  68
  69     Reference< XAccessible > OAccessibleImplementationAccess::implGetForeignControlledParent( ) const
  70     {
  71         return m_pImpl->m_xAccParent;
  72     }
  73
  74
  75     void OAccessibleImplementationAccess::setAccessibleParent( const Reference< XAccessible >& _rxAccParent )
  76     {
  77         m_pImpl->m_xAccParent = _rxAccParent;
  78     }
  79
  80
  81     sal_Int64 OAccessibleImplementationAccess::implGetForeignControlledStates( ) const
  82     {
  83         return m_pImpl->m_nForeignControlledStates;
  84     }
  85
  86
  87     void OAccessibleImplementationAccess::setStateBit( const sal_Int16 _nState, const sal_Bool _bSet )
  88     {
  89         OSL_ENSURE( _nState >= 0 && static_cast< sal_uInt16 >(_nState) < sizeof( sal_Int64 ) * 8, "OAccessibleImplementationAccess::setStateBit: no more bits (shutting down the universe now)!" );
  90
  91         sal_uInt64 nBitMask( 1 );
  92         nBitMask <<= _nState;
  93         if ( _bSet )
  94             m_pImpl->m_nForeignControlledStates |= nBitMask;
  95         else
  96             m_pImpl->m_nForeignControlledStates &= ~nBitMask;
  97     }
  98
  99     namespace { struct lcl_ImplId : public rtl::Static< ::cppu::OImplementationId, lcl_ImplId > {}; }
 100
 101
 102     const Sequence< sal_Int8 > OAccessibleImplementationAccess::getUnoTunnelImplementationId()
 103     {
 104         ::cppu::OImplementationId &rID = lcl_ImplId::get();
 105         return rID.getImplementationId();
 106     }
 107
 108
 109     sal_Int64 SAL_CALL OAccessibleImplementationAccess::getSomething( const Sequence< sal_Int8 >& _rIdentifier ) throw (RuntimeException, std::exception)
 110     {
 111         sal_Int64 nReturn( 0 );
 112
 113         if  (   ( _rIdentifier.getLength() == 16 )
 114             &&  ( 0 == memcmp( getUnoTunnelImplementationId().getConstArray(), _rIdentifier.getConstArray(), 16 ) )
 115             )
 116             nReturn = reinterpret_cast< sal_Int64 >( this );
 117
 118         return nReturn;
 119     }
 120
 121
 122     OAccessibleImplementationAccess* OAccessibleImplementationAccess::getImplementation( const Reference< XAccessibleContext >& _rxComponent )
 123     {
 124         OAccessibleImplementationAccess* pImplementation = NULL;
 125         try
 126         {
 127             Reference< XUnoTunnel > xTunnel( _rxComponent, UNO_QUERY );
 128             if ( xTunnel.is() )
 129             {
 130                 pImplementation = reinterpret_cast< OAccessibleImplementationAccess* >(
 131                         xTunnel->getSomething( getUnoTunnelImplementationId() ) );
 132             }
 133         }
 134         catch( const Exception& )
 135         {
 136             OSL_FAIL( "OAccessibleImplementationAccess::setAccessibleParent: caught an exception while retrieving the implementation!" );
 137         }
 138         return pImplementation;
 139     }
 140
 141
 142     bool OAccessibleImplementationAccess::setAccessibleParent(
 143             const Reference< XAccessibleContext >& _rxComponent, const Reference< XAccessible >& _rxNewParent )
 144     {
 145         OAccessibleImplementationAccess* pImplementation = getImplementation( _rxComponent );
 146
 147         if ( pImplementation )
 148             pImplementation->setAccessibleParent( _rxNewParent );
 149
 150         return ( NULL != pImplementation );
 151     }
 152
 153
 154 }   // namespace comphelper
 155
 156
 157
 158 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */