/**************************************************************
 * 
 * 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
 * under the License.
 * 
 *************************************************************/



#if ! defined INCLUDED_DP_INTERACT_H
#define INCLUDED_DP_INTERACT_H

#include "rtl/ref.hxx"
#include "cppuhelper/implbase1.hxx"
#include "com/sun/star/uno/XComponentContext.hpp"
#include "com/sun/star/ucb/XCommandEnvironment.hpp"
#include "com/sun/star/task/XAbortChannel.hpp"
#include "dp_misc_api.hxx"

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

namespace dp_misc
{

inline void progressUpdate(
    ::rtl::OUString const & status,
    css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv )
{
    if (xCmdEnv.is()) {
        css::uno::Reference<css::ucb::XProgressHandler> xProgressHandler(
            xCmdEnv->getProgressHandler() );
        if (xProgressHandler.is()) {
            xProgressHandler->update( css::uno::makeAny(status) );
        }
    }
}

//==============================================================================
class ProgressLevel
{
    css::uno::Reference<css::ucb::XProgressHandler> m_xProgressHandler;
    
public:
    inline ~ProgressLevel();
    inline ProgressLevel(
        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv,
        ::rtl::OUString const & status );
    
    inline void update( ::rtl::OUString const & status ) const;
    inline void update( css::uno::Any const & status ) const;
};

//______________________________________________________________________________
inline ProgressLevel::ProgressLevel(
    css::uno::Reference< css::ucb::XCommandEnvironment > const & xCmdEnv,
    ::rtl::OUString const & status )
{
    if (xCmdEnv.is())
        m_xProgressHandler = xCmdEnv->getProgressHandler();
    if (m_xProgressHandler.is())
        m_xProgressHandler->push( css::uno::makeAny(status) );
}

//______________________________________________________________________________
inline ProgressLevel::~ProgressLevel()
{
    if (m_xProgressHandler.is())
        m_xProgressHandler->pop();
}

//______________________________________________________________________________
inline void ProgressLevel::update( ::rtl::OUString const & status ) const
{
    if (m_xProgressHandler.is())
        m_xProgressHandler->update( css::uno::makeAny(status) );
}

//______________________________________________________________________________
inline void ProgressLevel::update( css::uno::Any const & status ) const
{
    if (m_xProgressHandler.is())
        m_xProgressHandler->update( status );
}

//##############################################################################

/** @return true if ia handler is present and any selection has been chosen
 */
DESKTOP_DEPLOYMENTMISC_DLLPUBLIC bool interactContinuation(
    css::uno::Any const & request,
    css::uno::Type const & continuation,
    css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv,
    bool * pcont, bool * pabort );

//##############################################################################

//==============================================================================
class DESKTOP_DEPLOYMENTMISC_DLLPUBLIC AbortChannel :
    public ::cppu::WeakImplHelper1<css::task::XAbortChannel>
{
    bool m_aborted;
    css::uno::Reference<css::task::XAbortChannel> m_xNext;
    
public:
    inline AbortChannel() : m_aborted( false ) {}
    inline static AbortChannel * get(
        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel )
        { return static_cast<AbortChannel *>(xAbortChannel.get()); }
    
    inline bool isAborted() const { return m_aborted; }
    
    // XAbortChannel
    virtual void SAL_CALL sendAbort() throw (css::uno::RuntimeException);
    
    class SAL_DLLPRIVATE Chain
    {
        const ::rtl::Reference<AbortChannel> m_abortChannel;
    public:
        inline Chain(
            ::rtl::Reference<AbortChannel> const & abortChannel,
            css::uno::Reference<css::task::XAbortChannel> const & xNext )
            : m_abortChannel( abortChannel )
            { if (m_abortChannel.is()) m_abortChannel->m_xNext = xNext; }
        inline ~Chain()
            { if (m_abortChannel.is()) m_abortChannel->m_xNext.clear(); }
    };
    friend class Chain;
};

}

#endif