/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: fpsmartcontent.cxx,v $
 *
 *  $Revision: 1.6 $
 *
 *  last change: $Author: ihi $ $Date: 2007-06-05 15:08:29 $
 *
 *  The Contents of this file are made available subject to
 *  the terms of GNU Lesser General Public License Version 2.1.
 *
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 by Sun Microsystems, Inc.
 *    901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License version 2.1, as published by the Free Software Foundation.
 *
 *    This library 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 for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *    MA  02111-1307  USA
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_fpicker.hxx"

#ifndef SVTOOLS_SOURCE_FILEPICKER_FPSMARTCONTENT_HXX
#include "fpsmartcontent.hxx"
#endif

/** === begin UNO includes === **/
#ifndef _COM_SUN_STAR_UCB_XCONTENTCREATOR_HPP_
#include <com/sun/star/ucb/XContentCreator.hpp>
#endif
#ifndef _COM_SUN_STAR_CONTAINER_XCHILD_HPP_
#include <com/sun/star/container/XChild.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_CONTENTINFOATTRIBUTE_HPP_
#include <com/sun/star/ucb/ContentInfoAttribute.hpp>
#endif
/** === end UNO includes === **/

#ifndef _UNOTOOLS_PROCESSFACTORY_HXX
#include <comphelper/processfactory.hxx>
#endif
#ifndef _UCBHELPER_COMMANDENVIRONMENT_HXX
#include <ucbhelper/commandenvironment.hxx>
#endif

#ifndef _SOLAR_H
#include <tools/solar.h>
#endif
#ifndef _TOOLS_DEBUG_HXX
#include <tools/debug.hxx>
#endif
#ifndef _STRING_HXX
#include <tools/string.hxx>
#endif

//........................................................................
namespace svt
{
//........................................................................

    using namespace ::com::sun::star::uno;
    using namespace ::com::sun::star::task;
    using namespace ::com::sun::star::ucb;
    using namespace ::com::sun::star::lang;
    using namespace ::com::sun::star::container;

    //====================================================================
    //= SmartContent
    //====================================================================
    //--------------------------------------------------------------------
    SmartContent::SmartContent()
        :m_pContent( NULL )
        ,m_eState( NOT_BOUND )
        ,m_pOwnInteraction( NULL )
    {
    }

    //--------------------------------------------------------------------
    SmartContent::SmartContent( const ::rtl::OUString& _rInitialURL )
        :m_pContent( NULL )
        ,m_eState( NOT_BOUND )
    {
        bindTo( _rInitialURL );
    }

    //--------------------------------------------------------------------
    SmartContent::~SmartContent()
    {
        DELETEZ( m_pContent );
    }

    //--------------------------------------------------------------------
    void SmartContent::enableOwnInteractionHandler(::svt::OFilePickerInteractionHandler::EInterceptedInteractions eInterceptions)
    {
        Reference< XMultiServiceFactory > xFactory = ::comphelper::getProcessServiceFactory();
        Reference< XInteractionHandler >  xGlobalInteractionHandler = Reference< XInteractionHandler >(
            xFactory->createInstance( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.task.InteractionHandler") ) ), UNO_QUERY );

        m_pOwnInteraction = new ::svt::OFilePickerInteractionHandler(xGlobalInteractionHandler);
        m_pOwnInteraction->enableInterceptions(eInterceptions);
        m_xOwnInteraction = m_pOwnInteraction;

        m_xCmdEnv = new ::ucbhelper::CommandEnvironment( m_xOwnInteraction, Reference< XProgressHandler >() );
    }

    //--------------------------------------------------------------------
    void SmartContent::enableDefaultInteractionHandler()
    {
        // Don't free the memory here! It will be done by the next
        // call automaticly - releasing of the uno reference ...
        m_pOwnInteraction = NULL;
        m_xOwnInteraction = Reference< XInteractionHandler >();

        Reference< XMultiServiceFactory > xFactory = ::comphelper::getProcessServiceFactory();
        Reference< XInteractionHandler >  xGlobalInteractionHandler = Reference< XInteractionHandler >(
            xFactory->createInstance( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.task.InteractionHandler") ) ), UNO_QUERY );
        m_xCmdEnv = new ucbhelper::CommandEnvironment( xGlobalInteractionHandler, Reference< XProgressHandler >() );
    }

    //--------------------------------------------------------------------
    ::svt::OFilePickerInteractionHandler* SmartContent::getOwnInteractionHandler() const
    {
        if (!m_xOwnInteraction.is())
            return NULL;
        return m_pOwnInteraction;
    }

    //--------------------------------------------------------------------
    SmartContent::InteractionHandlerType SmartContent::queryCurrentInteractionHandler() const
    {
        if (m_xOwnInteraction.is())
            return IHT_OWN;

        if (!m_xCmdEnv.is())
            return IHT_NONE;

        return IHT_DEFAULT;
    }

    //--------------------------------------------------------------------
    void SmartContent::disableInteractionHandler()
    {
        // Don't free the memory here! It will be done by the next
        // call automaticly - releasing of the uno reference ...
        m_pOwnInteraction = NULL;
        m_xOwnInteraction.clear();

        m_xCmdEnv.clear();
    }

    //--------------------------------------------------------------------
    void SmartContent::bindTo( const ::rtl::OUString& _rURL )
    {
        if ( getURL() == _rURL )
            // nothing to do, regardless of the state
            return;

        DELETEZ( m_pContent );
        m_eState = INVALID; // default to INVALID
        m_sURL = _rURL;

        if ( m_sURL.getLength() )
        {
            try
            {
                m_pContent = new ::ucbhelper::Content( _rURL, m_xCmdEnv );
                m_eState = UNKNOWN;
                    // from now on, the state is unknown -> we cannot know for sure if the content
                    // is really valid (some UCP's only tell this when asking for properties, not upon
                    // creation)
            }
            catch( ContentCreationException& )
            {
            }
            catch( Exception& )
            {
                DBG_ERROR( "SmartContent::bindTo: unexpected exception caught!" );
            }
        }
        else
        {
            m_eState = NOT_BOUND;
        }


        // don't forget to reset the may internal used interaction handler ...
        // But do it only for our own specialized interaction helper!
        ::svt::OFilePickerInteractionHandler* pHandler = getOwnInteractionHandler();
        if (pHandler)
        {
            pHandler->resetUseState();
            pHandler->forgetRequest();
        }
    }

    //--------------------------------------------------------------------
    sal_Bool SmartContent::implIs( const ::rtl::OUString& _rURL, Type _eType )
    {
        // bind to this content
        bindTo( _rURL );

        // did we survive this?
        if ( isInvalid() || !isBound() )
            return sal_False;

        DBG_ASSERT( m_pContent, "SmartContent::implIs: inconsistence!" );
            // if, after an bindTo, we don't have a content, then we should be INVALID, or at least
            // NOT_BOUND (the latter happens, for example, if somebody tries to ask for an empty URL)

        sal_Bool bIs = sal_False;
        try
        {
            if ( Folder == _eType )
                bIs = m_pContent->isFolder();
            else
                bIs = m_pContent->isDocument();

            // from here on, we definately know that the content is valid
            m_eState = VALID;
        }
        catch( Exception& )
        {
            // now we're definately invalid
            m_eState = INVALID;
        }
        return bIs;
    }

    //--------------------------------------------------------------------
    void SmartContent::getTitle( ::rtl::OUString& /* [out] */ _rTitle )
    {
        if ( !isBound() || isInvalid() )
            return;

        try
        {
            ::rtl::OUString sTitle;
            m_pContent->getPropertyValue( ::rtl::OUString::createFromAscii( "Title" ) ) >>= sTitle;
            _rTitle =  sTitle;

            // from here on, we definately know that the content is valid
            m_eState = VALID;
        }
        catch( ::com::sun::star::uno::Exception& )
        {
            // now we're definately invalid
            m_eState = INVALID;
        }
    }

    //--------------------------------------------------------------------
    sal_Bool SmartContent::hasParentFolder( )
    {
        if ( !isBound() || isInvalid() )
            return sal_False;

        sal_Bool bRet = sal_False;
        try
        {
            Reference< XChild > xChild( m_pContent->get(), UNO_QUERY );
            if ( xChild.is() )
            {
                Reference< XContent > xParent( xChild->getParent(), UNO_QUERY );
                if ( xParent.is() )
                {
                    String aParentURL = String( xParent->getIdentifier()->getContentIdentifier() );
                    bRet = ( aParentURL.Len() > 0 && aParentURL != (String)(m_pContent->getURL()) );

                    // now we're definately valid
                    m_eState = VALID;
                }
            }
        }
        catch( const Exception& )
        {
            // now we're definately invalid
            m_eState = INVALID;
        }
        return bRet;
    }

    //--------------------------------------------------------------------
    sal_Bool SmartContent::canCreateFolder( )
    {
        if ( !isBound() || isInvalid() )
            return sal_False;

        sal_Bool bRet = sal_False;
        try
        {
            Reference< XContentCreator > xCreator = Reference< XContentCreator >( m_pContent->get(), UNO_QUERY );
            if ( xCreator.is() )
            {
                Sequence< ContentInfo > aInfo = xCreator->queryCreatableContentsInfo();
                const ContentInfo* pInfo = aInfo.getConstArray();
                sal_Int32 nCount = aInfo.getLength();
                for ( sal_Int32 i = 0; i < nCount; ++i, ++pInfo )
                {
                    // Simply look for the first KIND_FOLDER...
                    if ( pInfo->Attributes & ContentInfoAttribute::KIND_FOLDER )
                    {
                        bRet = sal_True;
                        break;
                    }
                }

                // now we're definately valid
                m_eState = VALID;
            }
        }
        catch( Exception& )
        {
            // now we're definately invalid
            m_eState = INVALID;
        }
        return bRet;
    }

//........................................................................
} // namespace svt
//........................................................................