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#include <editsh.hxx>
#include <dbfld.hxx>
#include <dbmgr.hxx>
#include <com/sun/star/container/XNameAccess.hpp>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <doc.hxx>
#include <docary.hxx>
#include <ndtxt.hxx>        // GetCurFld
#include <txtfld.hxx>
#include <fmtfld.hxx>
#include <edimp.hxx>
#include <flddat.hxx>
#include <switerator.hxx>

using namespace com::sun::star;
using ::rtl::OUString;

sal_Bool SwEditShell::IsFieldDataSourceAvailable(String& rUsedDataSource) const
{
    const SwFldTypes * pFldTypes = GetDoc()->GetFldTypes();
    const sal_uInt16 nSize = pFldTypes->size();
    uno::Reference< lang::XMultiServiceFactory > xMgr( ::comphelper::getProcessServiceFactory() );
    if( !xMgr.is() )
        return sal_False;
    uno::Reference<uno::XInterface> xInstance = xMgr->createInstance(OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.sdb.DatabaseContext")));
    uno::Reference<container::XNameAccess> xDBContext(xInstance, uno::UNO_QUERY) ;
    if(!xDBContext.is())
        return sal_False;
    for(sal_uInt16 i = 0; i < nSize; ++i)
    {
        SwFieldType& rFldType = *((*pFldTypes)[i]);
        sal_uInt16 nWhich = rFldType.Which();
        if(IsUsed(rFldType))
        {
            switch(nWhich)
            {
                case RES_DBFLD:
                {
                    SwIterator<SwFmtFld,SwFieldType> aIter( rFldType );
                    SwFmtFld* pFld = aIter.First();
                    while(pFld)
                    {
                        if(pFld->IsFldInDoc())
                        {
                            const SwDBData& rData =
                                    ((SwDBFieldType*)pFld->GetFld()->GetTyp())->GetDBData();
                            try
                            {
                                return xDBContext->getByName(rData.sDataSource).hasValue();
                            }
                            catch(uno::Exception const &)
                            {
                                rUsedDataSource = rData.sDataSource;
                                return sal_False;
                            }
                        }
                        pFld = aIter.Next();
                    }
                }
                break;
            }
        }
    }
    return sal_True;
}


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