libreoffice/comphelper/source/misc/stillreadwriteinteraction.cxx

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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_comphelper.hxx"
#include <comphelper/stillreadwriteinteraction.hxx>

#include <com/sun/star/ucb/InteractiveIOException.hpp>

#include <com/sun/star/task/XInteractionAbort.hpp>

#include <com/sun/star/ucb/UnsupportedDataSinkException.hpp>

namespace comphelper{

    namespace css = ::com::sun::star;

StillReadWriteInteraction::StillReadWriteInteraction(const css::uno::Reference< css::task::XInteractionHandler >& xHandler)
             : m_bUsed                    (sal_False)
             , m_bHandledByMySelf         (sal_False)
             , m_bHandledByInternalHandler(sal_False)
{
    ::std::vector< ::ucbhelper::InterceptedInteraction::InterceptedRequest > lInterceptions;
    ::ucbhelper::InterceptedInteraction::InterceptedRequest                  aInterceptedRequest;

    aInterceptedRequest.Handle = HANDLE_INTERACTIVEIOEXCEPTION;
    aInterceptedRequest.Request <<= css::ucb::InteractiveIOException();
    aInterceptedRequest.Continuation = ::getCppuType(static_cast< css::uno::Reference< css::task::XInteractionAbort >* >(0));
    aInterceptedRequest.MatchExact = sal_False;
    lInterceptions.push_back(aInterceptedRequest);

    aInterceptedRequest.Handle = HANDLE_UNSUPPORTEDDATASINKEXCEPTION;
    aInterceptedRequest.Request <<= css::ucb::UnsupportedDataSinkException();
    aInterceptedRequest.Continuation = ::getCppuType(static_cast< css::uno::Reference< css::task::XInteractionAbort >* >(0));
    aInterceptedRequest.MatchExact = sal_False;
    lInterceptions.push_back(aInterceptedRequest);

    setInterceptedHandler(xHandler);
    setInterceptions(lInterceptions);
}

void StillReadWriteInteraction::resetInterceptions()
{
    setInterceptions(::std::vector< ::ucbhelper::InterceptedInteraction::InterceptedRequest >());
}

void StillReadWriteInteraction::resetErrorStates()
{
    m_bUsed                     = sal_False;
    m_bHandledByMySelf          = sal_False;
    m_bHandledByInternalHandler = sal_False;
}

sal_Bool StillReadWriteInteraction::wasWriteError()
{
    return (m_bUsed && m_bHandledByMySelf);
}

ucbhelper::InterceptedInteraction::EInterceptionState StillReadWriteInteraction::intercepted(const ::ucbhelper::InterceptedInteraction::InterceptedRequest&                         aRequest,
                                                                  const ::com::sun::star::uno::Reference< ::com::sun::star::task::XInteractionRequest >& xRequest)
{
    // we are used!
    m_bUsed = sal_True;

    // check if its a real interception - might some parameters are not the right ones ...
    sal_Bool bAbort = sal_False;
    switch(aRequest.Handle)
    {
    case HANDLE_INTERACTIVEIOEXCEPTION:
        {
            css::ucb::InteractiveIOException exIO;
            xRequest->getRequest() >>= exIO;
            bAbort = (
                (exIO.Code == css::ucb::IOErrorCode_ACCESS_DENIED     )
                || (exIO.Code == css::ucb::IOErrorCode_LOCKING_VIOLATION )
                || (exIO.Code == css::ucb::IOErrorCode_NOT_EXISTING )
#ifdef MACOSX
                // this is a workaround for MAC, on this platform if the file is locked
                // the returned error code looks to be wrong
                || (exIO.Code == css::ucb::IOErrorCode_GENERAL )
#endif
                );
        }
        break;

    case HANDLE_UNSUPPORTEDDATASINKEXCEPTION:
        {
            bAbort = sal_True;
        }
        break;
    }

    // handle interaction by ourself
    if (bAbort)
    {
        m_bHandledByMySelf = sal_True;
        css::uno::Reference< css::task::XInteractionContinuation > xAbort = ::ucbhelper::InterceptedInteraction::extractContinuation(
            xRequest->getContinuations(),
            ::getCppuType(static_cast< css::uno::Reference< css::task::XInteractionAbort >* >(0)));
        if (!xAbort.is())
            return ::ucbhelper::InterceptedInteraction::E_NO_CONTINUATION_FOUND;
        xAbort->select();
        return ::ucbhelper::InterceptedInteraction::E_INTERCEPTED;
    }

    // Otherwhise use internal handler.
    if (m_xInterceptedHandler.is())
    {
        m_bHandledByInternalHandler = sal_True;
        m_xInterceptedHandler->handle(xRequest);
    }
    return ::ucbhelper::InterceptedInteraction::E_INTERCEPTED;
}
}

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