1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_comphelper.hxx" 26 #include <comphelper/accimplaccess.hxx> 27 #include <com/sun/star/accessibility/XAccessible.hpp> 28 #include <com/sun/star/accessibility/XAccessibleContext.hpp> 29 #include <cppuhelper/typeprovider.hxx> 30 31 #include <set> 32 33 //......................................................................... 34 namespace comphelper 35 { 36 //......................................................................... 37 38 #define BITFIELDSIZE ( sizeof( sal_Int64 ) * 8 ) 39 // maximum number of bits we have in a sal_Int64 40 41 using ::com::sun::star::uno::Reference; 42 using ::com::sun::star::uno::Sequence; 43 using ::com::sun::star::uno::Exception; 44 using ::com::sun::star::uno::UNO_QUERY; 45 using ::com::sun::star::uno::RuntimeException; 46 using ::com::sun::star::lang::XUnoTunnel; 47 using ::com::sun::star::accessibility::XAccessible; 48 using ::com::sun::star::accessibility::XAccessibleContext; 49 50 //===================================================================== 51 //= OAccImpl_Impl 52 //===================================================================== 53 struct OAccImpl_Impl 54 { 55 Reference< XAccessible > m_xAccParent; 56 sal_Int64 m_nForeignControlledStates; 57 }; 58 59 60 //===================================================================== 61 //= OAccessibleImplementationAccess 62 //===================================================================== 63 //--------------------------------------------------------------------- OAccessibleImplementationAccess()64 OAccessibleImplementationAccess::OAccessibleImplementationAccess( ) 65 :m_pImpl( new OAccImpl_Impl ) 66 { 67 } 68 69 //--------------------------------------------------------------------- ~OAccessibleImplementationAccess()70 OAccessibleImplementationAccess::~OAccessibleImplementationAccess( ) 71 { 72 delete m_pImpl; 73 m_pImpl = NULL; 74 } 75 76 //--------------------------------------------------------------------- implGetForeignControlledParent() const77 Reference< XAccessible > OAccessibleImplementationAccess::implGetForeignControlledParent( ) const 78 { 79 return m_pImpl->m_xAccParent; 80 } 81 82 //--------------------------------------------------------------------- setAccessibleParent(const Reference<XAccessible> & _rxAccParent)83 void OAccessibleImplementationAccess::setAccessibleParent( const Reference< XAccessible >& _rxAccParent ) 84 { 85 m_pImpl->m_xAccParent = _rxAccParent; 86 } 87 88 //--------------------------------------------------------------------- implGetForeignControlledStates() const89 sal_Int64 OAccessibleImplementationAccess::implGetForeignControlledStates( ) const 90 { 91 return m_pImpl->m_nForeignControlledStates; 92 } 93 94 //--------------------------------------------------------------------- setStateBit(const sal_Int16 _nState,const sal_Bool _bSet)95 void OAccessibleImplementationAccess::setStateBit( const sal_Int16 _nState, const sal_Bool _bSet ) 96 { 97 OSL_ENSURE( _nState >= 0 && static_cast< sal_uInt16 >(_nState) < BITFIELDSIZE, "OAccessibleImplementationAccess::setStateBit: no more bits (shutting down the universe now)!" ); 98 99 sal_uInt64 nBitMask( 1 ); 100 nBitMask <<= _nState; 101 if ( _bSet ) 102 m_pImpl->m_nForeignControlledStates |= nBitMask; 103 else 104 m_pImpl->m_nForeignControlledStates &= ~nBitMask; 105 } 106 107 //--------------------------------------------------------------------- setForeignControlledState(const Reference<XAccessibleContext> & _rxComponent,const sal_Int16 _nState,const sal_Bool _bSet)108 sal_Bool OAccessibleImplementationAccess::setForeignControlledState( const Reference< XAccessibleContext >& _rxComponent, const sal_Int16 _nState, 109 const sal_Bool _bSet ) 110 { 111 OAccessibleImplementationAccess* pImplementation = getImplementation( _rxComponent ); 112 113 if ( pImplementation ) 114 pImplementation->setStateBit( _nState, _bSet ); 115 116 return ( NULL != pImplementation ); 117 } 118 119 //--------------------------------------------------------------------- getUnoTunnelImplementationId()120 const Sequence< sal_Int8 >& OAccessibleImplementationAccess::getUnoTunnelImplementationId() 121 { 122 static Sequence< sal_Int8 > aId; 123 if ( !aId.getLength() ) 124 { 125 ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); 126 if ( !aId.getLength() ) 127 { 128 static ::cppu::OImplementationId aImplId; 129 // unfortunately, the OImplementationId::getImplementationId returns a copy, not a static reference ... 130 aId = aImplId.getImplementationId(); 131 } 132 } 133 return aId; 134 } 135 136 //--------------------------------------------------------------------- getSomething(const Sequence<sal_Int8> & _rIdentifier)137 sal_Int64 SAL_CALL OAccessibleImplementationAccess::getSomething( const Sequence< sal_Int8 >& _rIdentifier ) throw (RuntimeException) 138 { 139 sal_Int64 nReturn( 0 ); 140 141 if ( ( _rIdentifier.getLength() == 16 ) 142 && ( 0 == rtl_compareMemory( getUnoTunnelImplementationId().getConstArray(), _rIdentifier.getConstArray(), 16 ) ) 143 ) 144 nReturn = reinterpret_cast< sal_Int64 >( this ); 145 146 return nReturn; 147 } 148 149 //--------------------------------------------------------------------- getImplementation(const Reference<XAccessibleContext> & _rxComponent)150 OAccessibleImplementationAccess* OAccessibleImplementationAccess::getImplementation( const Reference< XAccessibleContext >& _rxComponent ) 151 { 152 OAccessibleImplementationAccess* pImplementation = NULL; 153 try 154 { 155 Reference< XUnoTunnel > xTunnel( _rxComponent, UNO_QUERY ); 156 if ( xTunnel.is() ) 157 { 158 pImplementation = reinterpret_cast< OAccessibleImplementationAccess* >( 159 xTunnel->getSomething( getUnoTunnelImplementationId() ) ); 160 } 161 } 162 catch( const Exception& ) 163 { 164 OSL_ENSURE( sal_False, "OAccessibleImplementationAccess::setAccessibleParent: caught an exception while retrieving the implementation!" ); 165 } 166 return pImplementation; 167 } 168 169 //--------------------------------------------------------------------- setAccessibleParent(const Reference<XAccessibleContext> & _rxComponent,const Reference<XAccessible> & _rxNewParent)170 sal_Bool OAccessibleImplementationAccess::setAccessibleParent( 171 const Reference< XAccessibleContext >& _rxComponent, const Reference< XAccessible >& _rxNewParent ) 172 { 173 OAccessibleImplementationAccess* pImplementation = getImplementation( _rxComponent ); 174 175 if ( pImplementation ) 176 pImplementation->setAccessibleParent( _rxNewParent ); 177 178 return ( NULL != pImplementation ); 179 } 180 181 //......................................................................... 182 } // namespace comphelper 183 //......................................................................... 184 185 186