xref: /aoo41x/main/comphelper/source/property/propertystatecontainer.cxx (revision dde7d3fa)

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 * Licensed to the Apache Software Foundation (ASF) under one
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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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 * specific language governing permissions and limitations
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_comphelper.hxx"
#include "comphelper/propertystatecontainer.hxx"
#include <rtl/ustrbuf.hxx>

//.........................................................................
namespace comphelper
{
//.........................................................................

	using namespace ::com::sun::star::uno;
	using namespace ::com::sun::star::beans;
	using namespace ::com::sun::star::lang;

	namespace
	{
		static ::rtl::OUString lcl_getUnknownPropertyErrorMessage( const ::rtl::OUString& _rPropertyName )
		{
			// TODO: perhaps it's time to think about resources in the comphelper module?
			// Would be nice to have localized exception strings (a simply resource file containing
			// strings only would suffice, and could be realized with an UNO service, so we do not
			// need the dependency to the Tools project)
			::rtl::OUStringBuffer sMessage;
			sMessage.appendAscii( "The property \"" );
			sMessage.append( _rPropertyName );
			sMessage.appendAscii( "\" is unknown." );
			return sMessage.makeStringAndClear();
		}
	}

	//=====================================================================
	//= OPropertyStateContainer
	//=====================================================================
	//---------------------------------------------------------------------
	OPropertyStateContainer::OPropertyStateContainer( ::cppu::OBroadcastHelper&	_rBHelper )
		:OPropertyContainer( _rBHelper )
	{
	}

	//--------------------------------------------------------------------
	Any SAL_CALL OPropertyStateContainer::queryInterface( const Type& _rType ) throw (RuntimeException)
	{
		Any aReturn = OPropertyContainer::queryInterface( _rType );
		if ( !aReturn.hasValue() )
			aReturn = OPropertyStateContainer_TBase::queryInterface( _rType );
		return aReturn;
	}

	//--------------------------------------------------------------------
	IMPLEMENT_FORWARD_XTYPEPROVIDER2( OPropertyStateContainer, OPropertyContainer, OPropertyStateContainer_TBase )

	//--------------------------------------------------------------------
	sal_Int32 OPropertyStateContainer::getHandleForName( const ::rtl::OUString& _rPropertyName ) SAL_THROW( ( UnknownPropertyException ) )
	{
		// look up the handle for the name
		::cppu::IPropertyArrayHelper& rPH = getInfoHelper();
		sal_Int32 nHandle = rPH.getHandleByName( _rPropertyName );

		if ( -1 == nHandle )
			throw  UnknownPropertyException( lcl_getUnknownPropertyErrorMessage( _rPropertyName ), static_cast< XPropertyState* >( this ) );

		return nHandle;
	}

	//--------------------------------------------------------------------
	PropertyState SAL_CALL OPropertyStateContainer::getPropertyState( const ::rtl::OUString& _rPropertyName ) throw (UnknownPropertyException, RuntimeException)
	{
		return getPropertyStateByHandle( getHandleForName( _rPropertyName ) );
	}

	//--------------------------------------------------------------------
	Sequence< PropertyState > SAL_CALL OPropertyStateContainer::getPropertyStates( const Sequence< ::rtl::OUString >& _rPropertyNames ) throw (UnknownPropertyException, RuntimeException)
	{
		sal_Int32 nProperties = _rPropertyNames.getLength();
		Sequence< PropertyState> aStates( nProperties );
		if ( !nProperties )
			return aStates;

#ifdef _DEBUG
		// precondition: property sequence is sorted (the algorythm below relies on this)
		{
			const ::rtl::OUString* pNames = _rPropertyNames.getConstArray();
			const ::rtl::OUString* pNamesCompare = pNames + 1;
			const ::rtl::OUString* pNamesEnd = _rPropertyNames.getConstArray() + _rPropertyNames.getLength();
			for ( ; pNamesCompare != pNamesEnd; ++pNames, ++pNamesCompare )
				OSL_PRECOND( pNames->compareTo( *pNamesCompare ) < 0,
					"OPropertyStateContainer::getPropertyStates: property sequence not sorted!" );
		}
#endif

		const ::rtl::OUString* pLookup = _rPropertyNames.getConstArray();
		const ::rtl::OUString* pLookupEnd = pLookup + nProperties;
		PropertyState* pStates = aStates.getArray();

		cppu::IPropertyArrayHelper& rHelper = getInfoHelper();
		Sequence< Property> aAllProperties	= rHelper.getProperties();
		sal_Int32 nAllProperties			= aAllProperties.getLength();
		const  Property* pAllProperties		= aAllProperties.getConstArray();
		const  Property* pAllPropertiesEnd	= pAllProperties + nAllProperties;

		osl::MutexGuard aGuard( rBHelper.rMutex );
		for ( ; ( pAllProperties != pAllPropertiesEnd ) && ( pLookup != pLookupEnd ); ++pAllProperties )
		{
#ifdef _DEBUG
			if ( pAllProperties < pAllPropertiesEnd - 1 )
				OSL_ENSURE( pAllProperties->Name.compareTo( (pAllProperties + 1)->Name ) < 0,
					"OPropertyStateContainer::getPropertyStates: all-properties not sorted!" );
#endif
			if ( pAllProperties->Name.equals( *pLookup ) )
			{
				*pStates++ = getPropertyState( *pLookup );
				++pLookup;
			}
		}

		if ( pLookup != pLookupEnd )
			// we run out of properties from the IPropertyArrayHelper, but still have properties to lookup
			// -> we were asked for a nonexistent property
			throw UnknownPropertyException( lcl_getUnknownPropertyErrorMessage( *pLookup ), static_cast< XPropertyState* >( this ) );

		return aStates;
	}

	//--------------------------------------------------------------------
	void SAL_CALL OPropertyStateContainer::setPropertyToDefault( const ::rtl::OUString& _rPropertyName ) throw (UnknownPropertyException, RuntimeException)
	{
		setPropertyToDefaultByHandle( getHandleForName( _rPropertyName ) );
	}

	//--------------------------------------------------------------------
	Any SAL_CALL OPropertyStateContainer::getPropertyDefault( const ::rtl::OUString& _rPropertyName ) throw (UnknownPropertyException, WrappedTargetException, RuntimeException)
	{
        Any aDefault;
		getPropertyDefaultByHandle( getHandleForName( _rPropertyName ), aDefault );
        return aDefault;
	}

	//--------------------------------------------------------------------
	PropertyState OPropertyStateContainer::getPropertyStateByHandle( sal_Int32 _nHandle )
	{
		// simply compare the current and the default value
		Any aCurrentValue; getFastPropertyValue( aCurrentValue, _nHandle );
		Any aDefaultValue; getPropertyDefaultByHandle( _nHandle, aDefaultValue );

		sal_Bool bEqual = uno_type_equalData(
				const_cast< void* >( aCurrentValue.getValue() ), aCurrentValue.getValueType().getTypeLibType(),
				const_cast< void* >( aDefaultValue.getValue() ), aDefaultValue.getValueType().getTypeLibType(),
				reinterpret_cast< uno_QueryInterfaceFunc >(cpp_queryInterface),
                reinterpret_cast< uno_ReleaseFunc >(cpp_release)
			);
		if ( bEqual )
			return PropertyState_DEFAULT_VALUE;
		else
			return PropertyState_DIRECT_VALUE;
	}

	//--------------------------------------------------------------------
	void OPropertyStateContainer::setPropertyToDefaultByHandle( sal_Int32 _nHandle )
	{
        Any aDefault;
        getPropertyDefaultByHandle( _nHandle, aDefault );
		setFastPropertyValue( _nHandle, aDefault );
	}

//.........................................................................
}	// namespace comphelper
//.........................................................................

#ifdef FS_PRIV_DEBUG
#define STATECONTAINER_TEST
#endif

#ifdef STATECONTAINER_TEST
#include <com/sun/star/beans/PropertyAttribute.hpp>
#include <comphelper/proparrhlp.hxx>
#include <comphelper/broadcasthelper.hxx>

//.........................................................................
namespace comphelper
{
//.........................................................................

	using namespace ::com::sun::star::uno;
	using namespace ::com::sun::star::beans;

	//=====================================================================
	//= Test - compiler test
	//=====================================================================
	typedef ::cppu::OWeakAggObject	Test_RefCountBase;
	class Test	:public OMutexAndBroadcastHelper
				,public OPropertyStateContainer
				,public OPropertyArrayUsageHelper< Test >
				,public Test_RefCountBase
	{
	private:
		::rtl::OUString			m_sStringProperty;
		Reference< XInterface >	m_xInterfaceProperty;
		Any						m_aMayBeVoidProperty;

	protected:
		Test( );

		DECLARE_XINTERFACE( )

	public:
		static Test* Create( );

	protected:
		virtual Reference< XPropertySetInfo > SAL_CALL getPropertySetInfo(  ) throw(RuntimeException);
		virtual ::cppu::IPropertyArrayHelper& SAL_CALL getInfoHelper();
		virtual ::cppu::IPropertyArrayHelper* createArrayHelper( ) const;

	protected:
		// OPropertyStateContainer overridables
		virtual void getPropertyDefaultByHandle( sal_Int32 _nHandle, Any& _rDefault ) const;
	};

	//---------------------------------------------------------------------
	Test::Test( )
		:OPropertyStateContainer( GetBroadcastHelper() )
	{
		registerProperty(
			::rtl::OUString::createFromAscii( "StringProperty" ),
			1,
			PropertyAttribute::BOUND,
			&m_sStringProperty,
			::getCppuType( &m_sStringProperty )
		);

		registerProperty(
			::rtl::OUString::createFromAscii( "InterfaceProperty" ),
			2,
			PropertyAttribute::BOUND,
			&m_xInterfaceProperty,
			::getCppuType( &m_xInterfaceProperty )
		);

		registerMayBeVoidProperty(
			::rtl::OUString::createFromAscii( "IntProperty" ),
			3,
			PropertyAttribute::BOUND,
			&m_aMayBeVoidProperty,
			::getCppuType( static_cast< sal_Int32* >( NULL ) )
		);

		registerPropertyNoMember(
			::rtl::OUString::createFromAscii( "OtherInterfaceProperty" ),
			4,
			PropertyAttribute::BOUND | PropertyAttribute::MAYBEVOID,
			::getCppuType( static_cast< Reference< XInterface >* >( NULL ) ),
			NULL
		);
	}

	//---------------------------------------------------------------------
	IMPLEMENT_FORWARD_XINTERFACE2( Test, Test_RefCountBase, OPropertyStateContainer )

	//---------------------------------------------------------------------
	void Test::getPropertyDefaultByHandle( sal_Int32 _nHandle, Any& _rDefault ) const
	{
		switch ( _nHandle )
		{
			case 1:
				_rDefault = makeAny( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "StringPropertyDefault" ) ) );
				break;
			case 2:
				_rDefault = makeAny( Reference< XInterface >( ) );
				break;
			case 3:
				// void
				break;
			case 4:
				_rDefault = makeAny( Reference< XInterface >( ) );
				break;
			default:
				OSL_ENSURE( sal_False, "Test::getPropertyDefaultByHandle: invalid handle!" );
		}
	}

	//---------------------------------------------------------------------
	Reference< XPropertySetInfo > SAL_CALL Test::getPropertySetInfo(  ) throw(RuntimeException)
	{
		return createPropertySetInfo( getInfoHelper() );
	}

	//---------------------------------------------------------------------
	::cppu::IPropertyArrayHelper& SAL_CALL Test::getInfoHelper()
	{
		return *getArrayHelper();
	}

	//---------------------------------------------------------------------
	::cppu::IPropertyArrayHelper* Test::createArrayHelper( ) const
	{
		Sequence< Property > aProps;
		describeProperties( aProps );
		return new ::cppu::OPropertyArrayHelper( aProps );
	}

	//---------------------------------------------------------------------
	Test* Test::Create( )
	{
		Test* pInstance = new Test;
		return pInstance;
	}

//.........................................................................
}	// namespace comphelper
//.........................................................................

#endif