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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 _DBAUI_INTERACTION_HXX_
#define _DBAUI_INTERACTION_HXX_

#ifndef _CPPUHELPER_IMPLBASE2_HXX_
#include <cppuhelper/implbase2.hxx>
#endif

#include "moduledbu.hxx"
#include "apitools.hxx"

/** === begin UNO includes === **/
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/task/XInteractionHandler2.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/ucb/AuthenticationRequest.hpp>
#include <com/sun/star/sdb/ParametersRequest.hpp>
#include <com/sun/star/sdb/DocumentSaveRequest.hpp>
/** === end UNO includes === **/

namespace dbtools
{
	class SQLExceptionInfo;
}

//.........................................................................
namespace dbaui
{
//.........................................................................

	//=========================================================================
	//= BasicInteractionHandler
	//=========================================================================
	typedef ::cppu::WeakImplHelper2	<	::com::sun::star::lang::XServiceInfo
									,	::com::sun::star::task::XInteractionHandler2
									>	BasicInteractionHandler_Base;
	/** implements an <type scope="com.sun.star.task">XInteractionHandler</type> for
		database related interaction requests.
		<p/>
		Supported interaction requests by now (specified by an exception: The appropriate exception
		has to be returned by the getRequest method of the object implementing the
		<type scope="com.sun.star.task">XInteractionRequest</type> interface.
			<ul>
				<li><b><type scope="com.sun.star.sdbc">SQLException</type></b>: requests to display a
					standard error dialog for the (maybe chained) exception given</li>
			</ul>
	*/
	class BasicInteractionHandler
				:public BasicInteractionHandler_Base
	{
		const OModuleClient m_aModuleClient;
		const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >
				            m_xORB;
        const bool          m_bFallbackToGeneric;

    public:
		BasicInteractionHandler(
            const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& i_rORB,
            const bool i_bFallbackToGeneric
        );

        // XInteractionHandler2
        virtual ::sal_Bool SAL_CALL handleInteractionRequest( const ::com::sun::star::uno::Reference< ::com::sun::star::task::XInteractionRequest >& Request ) throw (::com::sun::star::uno::RuntimeException);

	    // XInteractionHandler
		virtual void SAL_CALL handle( const ::com::sun::star::uno::Reference< ::com::sun::star::task::XInteractionRequest >& Request ) throw(::com::sun::star::uno::RuntimeException);

	protected:
        sal_Bool
                impl_handle_throw( const ::com::sun::star::uno::Reference< ::com::sun::star::task::XInteractionRequest >& i_Request );

		/// handle SQLExceptions (and derived classes)
		void	implHandle(
					const ::dbtools::SQLExceptionInfo& _rSqlInfo,
					const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::task::XInteractionContinuation > >& _rContinuations);

		/// handle parameter requests
		void	implHandle(
					const ::com::sun::star::sdb::ParametersRequest& _rParamRequest,
					const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::task::XInteractionContinuation > >& _rContinuations);

		/// handle document save requests
		void	implHandle(
					const ::com::sun::star::sdb::DocumentSaveRequest& _rParamRequest,
					const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::task::XInteractionContinuation > >& _rContinuations);

        /// handles requests which are not SDB-specific
        bool    implHandleUnknown(
                    const ::com::sun::star::uno::Reference< ::com::sun::star::task::XInteractionRequest >& _rxRequest );

		/// known continuation types
		enum Continuation
		{
			APPROVE,
			DISAPPROVE,
			RETRY,
			ABORT,
			SUPPLY_PARAMETERS,
			SUPPLY_DOCUMENTSAVE
		};
		/** check if a given continuation sequence contains a given continuation type<p/>
			@return		the index within <arg>_rContinuations</arg> of the first occurrence of a continuation
						of the requested type, -1 of no such continuation exists
		*/
		sal_Int32 getContinuation(
			Continuation _eCont,
			const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::task::XInteractionContinuation > >& _rContinuations);
	};

	//=========================================================================
	//= SQLExceptionInteractionHandler
	//=========================================================================
    class SQLExceptionInteractionHandler : public BasicInteractionHandler
    {
    public:
        SQLExceptionInteractionHandler(
                const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& i_rORB
            )
            :BasicInteractionHandler( i_rORB, false )
        {
        }

        // XServiceInfo
		DECLARE_SERVICE_INFO_STATIC();
    };

	//=========================================================================
	//= SQLExceptionInteractionHandler
	//=========================================================================
    /** an implementation for the legacy css.sdb.InteractionHandler

        css.sdb.InteractionHandler is deprecated, as it does not only handle database related interactions,
        but also delegates all kind of unknown requests to a css.task.InteractionHandler.

        In today's architecture, there's only one central css.task.InteractionHandler, which is to be used
        for all requests. Depending on configuration information, it decides which handler implementation
        to delegate a request to.

        SQLExceptionInteractionHandler is the delegatee which handles only database related interactions.
        LegacyInteractionHandler is the version which first checks for a database related interaction, and
        forwards everything else to the css.task.InteractionHandler.
    */
    class LegacyInteractionHandler : public BasicInteractionHandler
    {
    public:
        LegacyInteractionHandler(
                const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& i_rORB
            )
            :BasicInteractionHandler( i_rORB, true )
        {
        }

        // XServiceInfo
		DECLARE_SERVICE_INFO_STATIC();
    };

//.........................................................................
}	// namespace dbaui
//.........................................................................

#endif // _DBAUI_INTERACTION_HXX_