/* -*- 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.
 *
 ************************************************************************/

#include "xexecutor.hxx"
#include <vcl/svapp.hxx>
#include <osl/thread.hxx>

using namespace ::com::sun::star;

void MainThreadExecutor_Impl::execute()
{
    Application::PostUserEvent( LINK( this, MainThreadExecutor_Impl, executor ), NULL );
}

IMPL_LINK( MainThreadExecutor_Impl, executor, void*, pDummyParam )
{
    if ( m_xJob.is() )
    {
        try {
            m_xJob->execute( m_aArgs );
        } catch( uno::Exception& ) {}
    }

    m_bExecuted = sal_True;
    delete this;

    return 0;
}

MainThreadExecutor_Impl::MainThreadExecutor_Impl( const uno::Reference< task::XJob >& xJob,
                                                  const uno::Sequence< beans::NamedValue >& aArguments )
: m_xJob( xJob )
, m_aArgs( aArguments )
, m_bExecuted( sal_False )
{
}

//-------------------------------------------------------------------------
uno::Any SAL_CALL UNOMainThreadExecutor::execute( const uno::Sequence< beans::NamedValue >& aArguments )
    throw ( lang::IllegalArgumentException,
            uno::Exception,
            uno::RuntimeException )
{
    uno::Reference< task::XJob > xJob;

    if ( aArguments.getLength() > 0 && aArguments[0].Name == "JobToExecute" )
        aArguments[0].Value >>= xJob;

    if ( !xJob.is() )
        throw lang::IllegalArgumentException();

    uno::Sequence< beans::NamedValue > aArgsForJob;
    if ( aArguments.getLength() > 1 )
        aArgsForJob = uno::Sequence< beans::NamedValue >( aArguments.getConstArray() + 1, aArguments.getLength() - 1 );

    MainThreadExecutor_Impl* pExecutor = new MainThreadExecutor_Impl( xJob, aArgsForJob );
    pExecutor->execute();

    // it is not a main thread, so it can be blocked
    // while( !pExecutor->isExecuted() )
    //  ::osl::Thread::yield();

    // TODO: implement transfering of the return values and exceptions

    return uno::Any();
}

//-------------------------------------------------------------------------
uno::Sequence< ::rtl::OUString > SAL_CALL UNOMainThreadExecutor::impl_staticGetSupportedServiceNames()
{
    uno::Sequence< ::rtl::OUString > aRet(1);
    aRet[0] = ::rtl::OUString("com.sun.star.comp.thread.MainThreadExecutor");
    return aRet;
}

//-------------------------------------------------------------------------
::rtl::OUString SAL_CALL UNOMainThreadExecutor::impl_staticGetImplementationName()
{
    return ::rtl::OUString("com.sun.star.comp.thread.MainThreadExecutor");
}

//-------------------------------------------------------------------------
uno::Reference< uno::XInterface > SAL_CALL UNOMainThreadExecutor::impl_staticCreateSelfInstance(
            const uno::Reference< lang::XMultiServiceFactory >& xServiceManager )
{
    return uno::Reference< uno::XInterface >( *new UNOMainThreadExecutor( xServiceManager ) );
}

//-------------------------------------------------------------------------
::rtl::OUString SAL_CALL UNOMainThreadExecutor::getImplementationName()
    throw ( uno::RuntimeException )
{
    return impl_staticGetImplementationName();
}

//-------------------------------------------------------------------------
sal_Bool SAL_CALL UNOMainThreadExecutor::supportsService( const ::rtl::OUString& ServiceName )
    throw ( uno::RuntimeException )
{
    uno::Sequence< ::rtl::OUString > aSeq = impl_staticGetSupportedServiceNames();

    for ( sal_Int32 nInd = 0; nInd < aSeq.getLength(); nInd++ )
        if ( ServiceName.compareTo( aSeq[nInd] ) == 0 )
            return sal_True;

    return sal_False;
}

//-------------------------------------------------------------------------
uno::Sequence< ::rtl::OUString > SAL_CALL UNOMainThreadExecutor::getSupportedServiceNames()
    throw ( uno::RuntimeException )
{
    return impl_staticGetSupportedServiceNames();
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */