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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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 *************************************************************/



#ifndef EXTENSIONS_SOURCE_PROPCTRLR_PCROMPONENTCONTEXT_HXX
#define EXTENSIONS_SOURCE_PROPCTRLR_PCROMPONENTCONTEXT_HXX

/** === begin UNO includes === **/
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
/** === end UNO includes === **/

//........................................................................
namespace pcr
{
//........................................................................

	//====================================================================
	//= ComponentContext
	//====================================================================
    /** a helper class for working with a component context
    */
	class ComponentContext
	{
    private:
        ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >        m_xContext;
        ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiComponentFactory >  m_xORB;

    public:
        /** constructs an instance
            @param _rxContext
                the component context to manage
            @throws ::com::sun::star::lang::NullPointerException
                if the given context, or its component factory, are <NULL/>
        */
        ComponentContext( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& _rxContext );

        /** returns the ->XComponentContext interface
        */
        inline ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >
            getUNOContext() const { return m_xContext; }

        /** determines whether the context is not <NULL/>
        */
        inline sal_Bool is() const
        {
            return m_xContext.is();
        }

        /** creates a component using our component factory/context
            @throws ::com::sun::star::uno::Exception
            @return
                <TRUE/> if and only if the component could be successfully created
        */
        template < class INTERFACE >
        bool createComponent( const ::rtl::OUString& _rServiceName, ::com::sun::star::uno::Reference< INTERFACE >& _out_rxComponent ) const
        {
            _out_rxComponent.clear();
            _out_rxComponent = _out_rxComponent.query(
                m_xORB->createInstanceWithContext( _rServiceName, m_xContext )
            );
            return _out_rxComponent.is();
        }

        /** creates a component using our component factory/context
            @throws ::com::sun::star::uno::Exception
            @return
                <TRUE/> if and only if the component could be successfully created
        */
        template < class INTERFACE >
        bool createComponent( const sal_Char* _pAsciiServiceName, ::com::sun::star::uno::Reference< INTERFACE >& _out_rxComponent ) const
        {
            return createComponent( ::rtl::OUString::createFromAscii( _pAsciiServiceName ), _out_rxComponent );
        }

        /** creates a component using our component factory/context

            @throws ::com::sun::star::lang::ServiceNotRegisteredException
                if the given service is not registered
            @throws Exception
                if an exception occured during creating the component
            @return
                the newly created component. Is never <NULL/>.
        */
        ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > createComponent( const ::rtl::OUString& _rServiceName ) const;

        /** creates a component using our component factory/context

            @throws ::com::sun::star::lang::ServiceNotRegisteredException
                if the given service is not registered
            @throws Exception
                if an exception occured during creating the component
            @return
                the newly created component. Is never <NULL/>.
        */
        ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > createComponent( const sal_Char* _pAsciiServiceName ) const
        {
            return createComponent( ::rtl::OUString::createFromAscii( _pAsciiServiceName ) );
        }

        /** returns the ->XMultiServiceFactory interface of ->m_xORB, for passing to
            older code which does not yet support ->XMultiComponentFactory
            @throws ::com::sun::star::uno::RuntimeException
                if our our component factory does not support this interface
        */
        ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >
            getLegacyServiceFactory() const;

        /** retrieves a value from our component context
            @param _rName
                the name of the value to retrieve
            @return
                the context value with the given name
            @seealso XComponentContext::getValueByName
            @seealso getContextValueByAsciiName
        */
        ::com::sun::star::uno::Any
                getContextValueByName( const ::rtl::OUString& _rName ) const;

        /** retrieves a value from our component context, specified by 8-bit ASCII string
            @param _rName
                the name of the value to retrieve, as ASCII character string
            @return
                the context value with the given name
            @seealso XComponentContext::getValueByName
            @seealso getContextValueByName
        */
        inline ::com::sun::star::uno::Any
                getContextValueByAsciiName( const sal_Char* _pAsciiName ) const
        {
            return getContextValueByName( ::rtl::OUString::createFromAscii( _pAsciiName ) );
        }

		/** retrieve context to create interfaces by the ctors
		*/
        ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext > getContext() const { return        m_xContext;}

	};

//........................................................................
} // namespace pcr
//........................................................................

#endif // EXTENSIONS_SOURCE_PROPCTRLR_PCROMPONENTCONTEXT_HXX