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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * 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.
 *
 ************************************************************************/

#ifndef _DBAUI_INTERACTION_HXX_
#define _DBAUI_INTERACTION_HXX_

#include <cppuhelper/implbase2.hxx>

#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 occurence 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_

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