/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: forms_module.hxx,v $
 * $Revision: 1.5 $
 *
 * This file is part of OpenOffice.org.
 *
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 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
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 ************************************************************************/

#ifndef FORMS_MODULE_INCLUDE_CONTEXT
    #error "not to be included directly! use 'foo_module.hxx instead'!"
#endif

#ifndef FORMS_MODULE_NAMESPACE
    #error "set FORMS_MODULE_NAMESPACE to your namespace identifier!"
#endif

#include <osl/mutex.hxx>
#include <tools/resid.hxx>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/lang/XSingleServiceFactory.hpp>
#include <com/sun/star/uno/Sequence.hxx>
#include <com/sun/star/registry/XRegistryKey.hpp>
#include <cppuhelper/factory.hxx>
#include <rtl/string.hxx>

//.........................................................................
namespace FORMS_MODULE_NAMESPACE
{
//.........................................................................

    typedef ::com::sun::star::uno::Reference< ::com::sun::star::lang::XSingleServiceFactory > (SAL_CALL *FactoryInstantiation)
		(
			const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& _rServiceManager,
			const ::rtl::OUString & _rComponentName,
			::cppu::ComponentInstantiation _pCreateFunction,
			const ::com::sun::star::uno::Sequence< ::rtl::OUString > & _rServiceNames,
			rtl_ModuleCount* _pModuleCounter
		);

	//=========================================================================
	//= OFormsModule
	//=========================================================================
	class OFormsModule
	{
	private:
		OFormsModule();
			// not implemented. OFormsModule is a static class

	protected:
		// auto registration administration
		static	::com::sun::star::uno::Sequence< ::rtl::OUString >*
			s_pImplementationNames;
		static	::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::rtl::OUString > >*
			s_pSupportedServices;
		static	::com::sun::star::uno::Sequence< sal_Int64 >*
			s_pCreationFunctionPointers;
		static	::com::sun::star::uno::Sequence< sal_Int64 >*
			s_pFactoryFunctionPointers;

	public:
		/** register a component implementing a service with the given data.
			@param	_rImplementationName
						the implementation name of the component
			@param	_rServiceNames
						the services the component supports
			@param	_pCreateFunction
						a function for creating an instance of the component
			@param	_pFactoryFunction
						a function for creating a factory for that component
			@see revokeComponent
		*/
		static void registerComponent(
			const ::rtl::OUString& _rImplementationName,
			const ::com::sun::star::uno::Sequence< ::rtl::OUString >& _rServiceNames,
			::cppu::ComponentInstantiation _pCreateFunction,
			FactoryInstantiation _pFactoryFunction);

		/** revoke the registration for the specified component
			@param	_rImplementationName
				the implementation name of the component
		*/
		static void revokeComponent(
			const ::rtl::OUString& _rImplementationName);

		/** write the registration information of all known components
			<p>writes the registration information of all components which are currently registered into the
			specified registry.<p/>
			<p>Usually used from within component_writeInfo.<p/>
			@param	_rxServiceManager
						the service manager
			@param	_rRootKey
						the registry key under which the information will be stored
			@return
						sal_True if the registration of all implementations was successfull, sal_False otherwise
		*/
		static sal_Bool writeComponentInfos(
			const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& _rxServiceManager,
			const ::com::sun::star::uno::Reference< ::com::sun::star::registry::XRegistryKey >& _rRootKey);

		/** creates a Factory for the component with the given implementation name.
			<p>Usually used from within component_getFactory.<p/>
			@param	_rxServiceManager
						a pointer to an XMultiServiceFactory interface as got in component_getFactory
			@param	_pImplementationName
						the implementation name of the component
			@return
						the XInterface access to a factory for the component
		*/
		static ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > getComponentFactory(
			const ::rtl::OUString& _rImplementationName,
			const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& _rxServiceManager
			);

	private:
		/** ensure that the impl class exists
			@precond m_aMutex is guarded when this method gets called
		*/
		static void ensureImpl();
	};

	//==========================================================================
	//= OMultiInstanceAutoRegistration
	//==========================================================================
	template <class TYPE>
	class OMultiInstanceAutoRegistration
	{
	public:
		/** automatically registeres a multi instance component
			<p>Assumed that the template argument has the three methods
				<ul>
					<li><code>static ::rtl::OUString getImplementationName_Static()</code><li/>
					<li><code>static ::com::sun::star::uno::Sequence< ::rtl::OUString > getSupportedServiceNames_Static()</code><li/>
					<li><code>static ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >
						Create(const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >&)</code>
						</li>
				<ul/>
			the instantiation of this object will automatically register the class via <method>OFormsModule::registerComponent</method>.
			<p/>
			<p>The factory creation function used is <code>::cppu::createSingleFactory</code>.</p>

			@see OOneInstanceAutoRegistration
		*/
		OMultiInstanceAutoRegistration();
		~OMultiInstanceAutoRegistration();
	};

	template <class TYPE>
	OMultiInstanceAutoRegistration<TYPE>::OMultiInstanceAutoRegistration()
	{
		OFormsModule::registerComponent(
			TYPE::getImplementationName_Static(),
			TYPE::getSupportedServiceNames_Static(),
			TYPE::Create,
			::cppu::createSingleFactory
			);
	}

	template <class TYPE>
	OMultiInstanceAutoRegistration<TYPE>::~OMultiInstanceAutoRegistration()
	{
		OFormsModule::revokeComponent(TYPE::getImplementationName_Static());
	}

	//==========================================================================
	//= OOneInstanceAutoRegistration
	//==========================================================================
	template <class TYPE>
	class OOneInstanceAutoRegistration
	{
	public:
		/** automatically registeres a single instance component
			<p>Assumed that the template argument has the three methods
				<ul>
					<li><code>static ::rtl::OUString getImplementationName_Static()</code><li/>
					<li><code>static ::com::sun::star::uno::Sequence< ::rtl::OUString > getSupportedServiceNames_Static()</code><li/>
					<li><code>static ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >
						Create(const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >&)</code>
						</li>
				<ul/>
			the instantiation of this object will automatically register the class via <method>OFormsModule::registerComponent</method>.
			<p/>
			The factory creation function used is <code>::cppu::createOneInstanceFactory</code>.
			@see OOneInstanceAutoRegistration
		*/
		OOneInstanceAutoRegistration();
		~OOneInstanceAutoRegistration();
	};

	template <class TYPE>
	OOneInstanceAutoRegistration<TYPE>::OOneInstanceAutoRegistration()
	{
		OFormsModule::registerComponent(
			TYPE::getImplementationName_Static(),
			TYPE::getSupportedServiceNames_Static(),
			TYPE::Create,
			::cppu::createOneInstanceFactory
			);
	}

	template <class TYPE>
	OOneInstanceAutoRegistration<TYPE>::~OOneInstanceAutoRegistration()
	{
		OFormsModule::revokeComponent(TYPE::getImplementationName_Static());
	}

    //==========================================================================
    //= helper for classes implementing the service handling via
    //= OMultiInstanceAutoRegistration or OOneInstanceAutoRegistration
    //==========================================================================
    #define DECLARE_SERVICE_REGISTRATION( classname ) \
        virtual ::rtl::OUString SAL_CALL getImplementationName(  ) throw (::com::sun::star::uno::RuntimeException); \
        virtual ::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames(  ) throw (::com::sun::star::uno::RuntimeException); \
        \
        static  ::rtl::OUString SAL_CALL getImplementationName_Static(); \
        static  ::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames_Static(); \
        static  ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > SAL_CALL Create( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& _rxFactory ); \
        \
        friend class OOneInstanceAutoRegistration< classname >; \
        friend class OMultiInstanceAutoRegistration< classname >; \

    #define IMPLEMENT_SERVICE_REGISTRATION_BASE( classname, baseclass ) \
        \
        ::rtl::OUString SAL_CALL classname::getImplementationName(  ) throw ( RuntimeException ) \
        { return getImplementationName_Static(); } \
        \
        Sequence< ::rtl::OUString > SAL_CALL classname::getSupportedServiceNames(  ) throw (RuntimeException) \
        { \
            return ::comphelper::concatSequences( \
                getAggregateServiceNames(), \
                getSupportedServiceNames_Static() \
            ); \
        } \
        \
        ::rtl::OUString SAL_CALL classname::getImplementationName_Static() \
        { return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.comp.forms."#classname ) ); } \
        \
        Reference< XInterface > SAL_CALL classname::Create( const Reference< XMultiServiceFactory >& _rxFactory ) \
        { return static_cast< XServiceInfo* >( new classname( _rxFactory ) ); } \
        \

    #define IMPLEMENT_SERVICE_REGISTRATION_1( classname, baseclass, service1 ) \
        IMPLEMENT_SERVICE_REGISTRATION_BASE( classname, baseclass ) \
        \
        Sequence< ::rtl::OUString > SAL_CALL classname::getSupportedServiceNames_Static() \
        { \
            Sequence< ::rtl::OUString > aOwnNames( 1 ); \
            aOwnNames[ 0 ] = service1; \
            \
            return ::comphelper::concatSequences( \
                baseclass::getSupportedServiceNames_Static(), \
                aOwnNames \
            ); \
        } \

    #define IMPLEMENT_SERVICE_REGISTRATION_2( classname, baseclass, service1, service2 ) \
        IMPLEMENT_SERVICE_REGISTRATION_BASE( classname, baseclass ) \
        \
        Sequence< ::rtl::OUString > SAL_CALL classname::getSupportedServiceNames_Static() \
        { \
            Sequence< ::rtl::OUString > aOwnNames( 2 ); \
            aOwnNames[ 0 ] = service1; \
            aOwnNames[ 1 ] = service2; \
            \
            return ::comphelper::concatSequences( \
                baseclass::getSupportedServiceNames_Static(), \
                aOwnNames \
            ); \
        } \

    #define IMPLEMENT_SERVICE_REGISTRATION_7( classname, baseclass, service1, service2, service3, service4 , service5, service6, service7 ) \
        IMPLEMENT_SERVICE_REGISTRATION_BASE( classname, baseclass ) \
        \
           Sequence< ::rtl::OUString > SAL_CALL classname::getSupportedServiceNames_Static() \
           { \
                   Sequence< ::rtl::OUString > aOwnNames( 7 ); \
                   aOwnNames[ 0 ] = service1; \
                   aOwnNames[ 1 ] = service2; \
                   aOwnNames[ 2 ] = service3; \
                   aOwnNames[ 3 ] = service4; \
                   aOwnNames[ 4 ] = service5; \
                   aOwnNames[ 5 ] = service6; \
                   aOwnNames[ 6 ] = service7; \
            \
            return ::comphelper::concatSequences( \
                baseclass::getSupportedServiceNames_Static(), \
                aOwnNames \
            ); \
           } \

    #define IMPLEMENT_SERVICE_REGISTRATION_8( classname, baseclass, service1, service2, service3, service4 , service5, service6, service7, service8 ) \
        IMPLEMENT_SERVICE_REGISTRATION_BASE( classname, baseclass ) \
        \
           Sequence< ::rtl::OUString > SAL_CALL classname::getSupportedServiceNames_Static() \
           { \
                   Sequence< ::rtl::OUString > aOwnNames( 8 ); \
                   aOwnNames[ 0 ] = service1; \
                   aOwnNames[ 1 ] = service2; \
                   aOwnNames[ 2 ] = service3; \
                   aOwnNames[ 3 ] = service4; \
                   aOwnNames[ 4 ] = service5; \
                   aOwnNames[ 5 ] = service6; \
                   aOwnNames[ 6 ] = service7; \
                   aOwnNames[ 6 ] = service8; \
            \
            return ::comphelper::concatSequences( \
                baseclass::getSupportedServiceNames_Static(), \
                aOwnNames \
            ); \
           } \

//.........................................................................
}	// namespace FORMS_MODULE_NAMESPACE
//.........................................................................
