/*************************************************************************
 *
 *  $RCSfile: dispatchwatcher.cxx,v $
 *
 *  $Revision: 1.23 $
 *
 *  last change: $Author: obo $ $Date: 2005-04-21 11:46:53 $
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 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
 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (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.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
 *  obligations concerning the Software.
 *
 *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
 *
 *  Copyright: 2000 by Sun Microsystems, Inc.
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): _______________________________________
 *
 *
 ************************************************************************/

#include "dispatchwatcher.hxx"

#ifndef _RTL_USTRING_HXX_
#include <rtl/ustring.hxx>
#endif
#ifndef _STRING_HXX
#include <tools/string.hxx>
#endif
#ifndef _COMPHELPER_PROCESSFACTORY_HXX_
#include <comphelper/processfactory.hxx>
#endif

#ifndef _COM_SUN_STAR_UTIL_XCLOSEABLE_HPP_
#include <com/sun/star/util/XCloseable.hpp>
#endif
#ifndef _COM_SUN_STAR_UTIL_CLOSEVETOEXCEPTION_HPP_
#include <com/sun/star/util/CloseVetoException.hpp>
#endif
#ifndef _COM_SUN_STAR_TASK_XINTERACTIONHANDLER_HPP_
#include <com/sun/star/task/XInteractionHandler.hpp>
#endif
#ifndef _COM_SUN_STAR_UTIL_URL_HPP_
#include <com/sun/star/util/URL.hpp>
#endif
#ifndef _COM_SUN_STAR_FRAME_XDESKTOP_HPP_
#include <com/sun/star/frame/XDesktop.hpp>
#endif
#ifndef _COM_SUN_STAR_CONTAINER_XENUMERATION_HPP_
#include <com/sun/star/container/XEnumeration.hpp>
#endif
#ifndef _COM_SUN_STAR_FRAME_XFRAMESSUPPLIER_HPP_
#include <com/sun/star/frame/XFramesSupplier.hpp>
#endif
#ifndef _COM_SUN_STAR_FRAME_XDISPATCH_HPP_
#include <com/sun/star/frame/XDispatch.hpp>
#endif
#ifndef _COM_SUN_STAR_FRAME_XCOMPONENTLOADER_HPP_
#include <com/sun/star/frame/XComponentLoader.hpp>
#endif
#ifndef _COM_SUN_STAR_BEANS_PROPERTYVALUE_HPP_
#include <com/sun/star/beans/PropertyValue.hpp>
#endif
#ifndef _COM_SUN_STAR_VIEW_XPRINTABLE_HPP_
#include <com/sun/star/view/XPrintable.hpp>
#endif
#ifndef _COM_SUN_STAR_FRAME_XDISPATCHPROVIDER_HPP_
#include <com/sun/star/frame/XDispatchProvider.hpp>
#endif
#ifndef _COM_SUN_STAR_UTIL_XURLTRANSFORMER_HPP_
#include <com/sun/star/util/XURLTransformer.hpp>
#endif
#ifndef _COM_SUN_STAR_DOCUMENT_MACROEXECMODE_HPP_
#include <com/sun/star/document/MacroExecMode.hpp>
#endif
#ifndef _COM_SUN_STAR_DOCUMENT_UPDATEDOCMODE_HPP_
#include <com/sun/star/document/UpdateDocMode.hpp>
#endif

#include <tools/urlobj.hxx>
#include <comphelper/mediadescriptor.hxx>

#include <vector>

using namespace ::rtl;
using namespace ::osl;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::util;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::frame;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::view;

namespace desktop
{

String GetURL_Impl( const String& rName );

struct DispatchHolder
{
    DispatchHolder( const URL& rURL, Reference< XDispatch >& rDispatch ) :
        aURL( rURL ), xDispatch( rDispatch ) {}

    URL aURL;
    Reference< XDispatch > xDispatch;
};

Mutex* DispatchWatcher::pWatcherMutex = NULL;

Mutex& DispatchWatcher::GetMutex()
{
    if ( !pWatcherMutex )
    {
        ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
        if ( !pWatcherMutex )
            pWatcherMutex = new osl::Mutex();
    }

    return *pWatcherMutex;
}

// Create or get the dispatch watcher implementation. This implementation must be
// a singleton to prevent access to the framework after it wants to terminate.
DispatchWatcher* DispatchWatcher::GetDispatchWatcher()
{
    static Reference< XInterface > xDispatchWatcher;
    static DispatchWatcher*        pDispatchWatcher = NULL;

    if ( !xDispatchWatcher.is() )
    {
        ::osl::MutexGuard aGuard( GetMutex() );

        if ( !xDispatchWatcher.is() )
        {
            pDispatchWatcher = new DispatchWatcher();

            // We have to hold a reference to ourself forever to prevent our own destruction.
            xDispatchWatcher = static_cast< cppu::OWeakObject *>( pDispatchWatcher );
        }
    }

    return pDispatchWatcher;
}


DispatchWatcher::DispatchWatcher()
    : m_nRequestCount(1)
{
}


DispatchWatcher::~DispatchWatcher()
{
}


void DispatchWatcher::executeDispatchRequests( const DispatchList& aDispatchRequestsList )
{
    Reference< XComponentLoader > xDesktop( ::comphelper::getProcessServiceFactory()->createInstance(
                                                OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.frame.Desktop")) ),
                                            UNO_QUERY );

    sal_uInt32                      index = 0;
    DispatchList::const_iterator    p;
    std::vector< DispatchHolder >   aDispatches;
    ::rtl::OUString                 aAsTemplateArg( RTL_CONSTASCII_USTRINGPARAM( "AsTemplate"));

    for ( p = aDispatchRequestsList.begin(); p != aDispatchRequestsList.end(); p++ )
    {
        String                  aPrinterName;
        const DispatchRequest&  aDispatchRequest = *p;

        // create parameter array
        sal_Int32 nCount = 4;
        if ( aDispatchRequest.aPreselectedFactory.getLength() )
            nCount++;

        // we need more properties for a print/print to request
        if ( aDispatchRequest.aRequestType == REQUEST_PRINT ||
             aDispatchRequest.aRequestType == REQUEST_PRINTTO  )
            nCount++;

        Sequence < PropertyValue > aArgs( nCount );

        // mark request as user interaction from outside
        aArgs[0].Name = ::rtl::OUString::createFromAscii("Referer");
        aArgs[0].Value <<= ::rtl::OUString::createFromAscii("private:OpenEvent");

        if ( aDispatchRequest.aRequestType == REQUEST_PRINT ||
             aDispatchRequest.aRequestType == REQUEST_PRINTTO )
        {
            aArgs[1].Name = ::rtl::OUString::createFromAscii("ReadOnly");
            aArgs[2].Name = ::rtl::OUString::createFromAscii("OpenNewView");
            aArgs[3].Name = ::rtl::OUString::createFromAscii("Hidden");
            aArgs[4].Name = ::rtl::OUString::createFromAscii("Silent");
        }
        else
        {
            Reference < com::sun::star::task::XInteractionHandler > xInteraction(
                ::comphelper::getProcessServiceFactory()->createInstance( OUString::createFromAscii("com.sun.star.task.InteractionHandler") ),
                com::sun::star::uno::UNO_QUERY );

            aArgs[1].Name = OUString::createFromAscii( "InteractionHandler" );
            aArgs[1].Value <<= xInteraction;

            sal_Int16 nMacroExecMode = ::com::sun::star::document::MacroExecMode::USE_CONFIG;
            aArgs[2].Name = OUString::createFromAscii( "MacroExecutionMode" );
            aArgs[2].Value <<= nMacroExecMode;

            sal_Int16 nUpdateDoc = ::com::sun::star::document::UpdateDocMode::ACCORDING_TO_CONFIG;
            aArgs[3].Name = OUString::createFromAscii( "UpdateDocMode" );
            aArgs[3].Value <<= nUpdateDoc;
        }

        if ( aDispatchRequest.aPreselectedFactory.getLength() )
        {
            aArgs[nCount-1].Name = ::comphelper::MediaDescriptor::PROP_DOCUMENTSERVICE();
            aArgs[nCount-1].Value <<= aDispatchRequest.aPreselectedFactory;
        }

        String aName( GetURL_Impl( aDispatchRequest.aURL ) );
        ::rtl::OUString aTarget( RTL_CONSTASCII_USTRINGPARAM("_default") );

        if ( aDispatchRequest.aRequestType == REQUEST_PRINT ||
             aDispatchRequest.aRequestType == REQUEST_PRINTTO )
        {
            // documents opened for printing are opened readonly because they must be opened as a new document and this
            // document could be open already
            aArgs[1].Value <<= sal_True;

            // always open a new document for printing, because it must be disposed afterwards
            aArgs[2].Value <<= sal_True;

            // printing is done in a hidden view
            aArgs[3].Value <<= sal_True;

            // load document for printing without user interaction
            aArgs[4].Value <<= sal_True;

            // hidden documents should never be put into open tasks
            aTarget = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("_blank") );
        }

        // load the document ... if they are loadable!
        // Otherwise try to dispatch it ...
        Reference < XPrintable > xDoc;
        if(
            ( aName.CompareToAscii( ".uno"  , 4 ) == COMPARE_EQUAL )  ||
            ( aName.CompareToAscii( "slot:" , 5 ) == COMPARE_EQUAL )  ||
            ( aName.CompareToAscii( "macro:", 6 ) == COMPARE_EQUAL )  ||
            ( aName.CompareToAscii("vnd.sun.star.script", 19) == COMPARE_EQUAL)
          )
        {
            // Attention: URL must be parsed full. Otherwise some detections on it will fail!
            // It doesnt matter, if parser isn't available. Because; We try loading of URL then ...
            URL             aURL ;
            aURL.Complete = aName;

            Reference < XDispatch >         xDispatcher ;
            Reference < XDispatchProvider > xProvider   ( xDesktop, UNO_QUERY );
            Reference < XURLTransformer >   xParser     ( ::comphelper::getProcessServiceFactory()->createInstance( OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.util.URLTransformer")) ), ::com::sun::star::uno::UNO_QUERY );

            if( xParser.is() == sal_True )
                xParser->parseStrict( aURL );

            if( xProvider.is() == sal_True )
                xDispatcher = xProvider->queryDispatch( aURL, ::rtl::OUString(), 0 );

            if( xDispatcher.is() == sal_True )
            {
                {
                    ::osl::ClearableMutexGuard aGuard( GetMutex() );
                    // Remember request so we can find it in statusChanged!
                    m_aRequestContainer.insert( DispatchWatcherHashMap::value_type( aURL.Complete, (sal_Int32)1 ) );
                    m_nRequestCount++;
                }

                // Use local vector to store dispatcher because we have to fill our request container before
                // we can dispatch. Otherwise it would be possible that statusChanged is called before we dispatched all requests!!
                aDispatches.push_back( DispatchHolder( aURL, xDispatcher ));
            }
        }
        else if ( ( aName.CompareToAscii( "service:"  , 8 ) == COMPARE_EQUAL ) )
        {
            // TODO: the dispatch has to be done for loadComponentFromURL as well. Please ask AS for more details.
            URL             aURL ;
            aURL.Complete = aName;

            Reference < XDispatch >         xDispatcher ;
            Reference < XDispatchProvider > xProvider   ( xDesktop, UNO_QUERY );
            Reference < XURLTransformer >   xParser     ( ::comphelper::getProcessServiceFactory()->createInstance( OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.util.URLTransformer")) ), ::com::sun::star::uno::UNO_QUERY );

            if( xParser.is() == sal_True )
                xParser->parseStrict( aURL );

            if( xProvider.is() == sal_True )
                xDispatcher = xProvider->queryDispatch( aURL, ::rtl::OUString(), 0 );

            if( xDispatcher.is() == sal_True )
            {
                try
                {
                    // We have to be listener to catch errors during dispatching URLs.
                    // Otherwise it would be possible to have an office running without an open
                    // window!!
                    Sequence < PropertyValue > aArgs(1);
                    aArgs[0].Name    = ::rtl::OUString::createFromAscii("SynchronMode");
                    aArgs[0].Value <<= sal_True;
                    Reference < XNotifyingDispatch > xDisp( xDispatcher, UNO_QUERY );
                    if ( xDisp.is() )
                        xDisp->dispatchWithNotification( aURL, aArgs, DispatchWatcher::GetDispatchWatcher() );
                    else
                        xDispatcher->dispatch( aURL, aArgs );
                }
                catch ( ::com::sun::star::uno::Exception& )
                {
                    OUString aMsg = OUString::createFromAscii(
                        "Desktop::OpenDefault() IllegalArgumentException while calling XNotifyingDispatch: ");
                    OSL_ENSURE( sal_False, OUStringToOString(aMsg, RTL_TEXTENCODING_ASCII_US).getStr());
                }
            }
        }
        else
        {
            INetURLObject aObj( aName );
            if ( aObj.GetProtocol() == INET_PROT_PRIVATE )
                aTarget = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("_default") );

            // Set "AsTemplate" argument according to request type
            if ( aDispatchRequest.aRequestType == REQUEST_FORCENEW ||
                 aDispatchRequest.aRequestType == REQUEST_FORCEOPEN     )
            {
                sal_Int32 nIndex = aArgs.getLength();
                aArgs.realloc( nIndex+1 );
                aArgs[nIndex].Name = aAsTemplateArg;
                if ( aDispatchRequest.aRequestType == REQUEST_FORCENEW )
                    aArgs[nIndex].Value <<= sal_True;
                else
                    aArgs[nIndex].Value <<= sal_False;
            }

            // if we are called in viewmode, open document read-only
            // #95425#
            if(aDispatchRequest.aRequestType == REQUEST_VIEW) {
                sal_Int32 nIndex = aArgs.getLength();
                aArgs.realloc(nIndex+1);
                aArgs[nIndex].Name = OUString::createFromAscii("ReadOnly");
                aArgs[nIndex].Value <<= sal_True;
            }

            // if we are called with -start set Start in mediadescriptor
            if(aDispatchRequest.aRequestType == REQUEST_START) {
                sal_Int32 nIndex = aArgs.getLength();
                aArgs.realloc(nIndex+1);
                aArgs[nIndex].Name = OUString::createFromAscii("StartPresentation");
                aArgs[nIndex].Value <<= sal_True;
            }

            // This is a synchron loading of a component so we don't have to deal with our statusChanged listener mechanism.

            try
            {
                xDoc = Reference < XPrintable >( xDesktop->loadComponentFromURL( aName, aTarget, 0, aArgs ), UNO_QUERY );
            }
            catch ( ::com::sun::star::lang::IllegalArgumentException& iae)
            {
                OUString aMsg = OUString::createFromAscii(
                    "Dispatchwatcher IllegalArgumentException while calling loadComponentFromURL: ")
                    + iae.Message;
                OSL_ENSURE( sal_False, OUStringToOString(aMsg, RTL_TEXTENCODING_ASCII_US).getStr());
            }
            catch (com::sun::star::io::IOException& ioe)
            {
                OUString aMsg = OUString::createFromAscii(
                    "Dispatchwatcher IOException while calling loadComponentFromURL: ")
                    + ioe.Message;
                OSL_ENSURE( sal_False, OUStringToOString(aMsg, RTL_TEXTENCODING_ASCII_US).getStr());
            }
            if ( aDispatchRequest.aRequestType == REQUEST_OPEN ||
                 aDispatchRequest.aRequestType == REQUEST_VIEW ||
                 aDispatchRequest.aRequestType == REQUEST_START ||
                 aDispatchRequest.aRequestType == REQUEST_FORCEOPEN ||
                 aDispatchRequest.aRequestType == REQUEST_FORCENEW      )
            {
                // request is completed
                OfficeIPCThread::RequestsCompleted( 1 );
            }
            else if ( aDispatchRequest.aRequestType == REQUEST_PRINT ||
                      aDispatchRequest.aRequestType == REQUEST_PRINTTO )
            {
                if ( xDoc.is() )
                {
                    if ( aDispatchRequest.aRequestType == REQUEST_PRINTTO )
                    {
                        // create the printer
                        Sequence < PropertyValue > aPrinterArgs( 1 );
                        aPrinterArgs[0].Name = ::rtl::OUString::createFromAscii("Name");
                        aPrinterArgs[0].Value <<= ::rtl::OUString( aDispatchRequest.aPrinterName );
                        xDoc->setPrinter( aPrinterArgs );
                    }

                    // print ( also without user interaction )
                    Sequence < PropertyValue > aPrinterArgs( 1 );
                    aPrinterArgs[0].Name = ::rtl::OUString::createFromAscii("Wait");
                    aPrinterArgs[0].Value <<= ( sal_Bool ) sal_True;
                    xDoc->print( aPrinterArgs );
                }
                else
                {
                    // place error message here ...
                }

                // remove the document
                try
                {
                    Reference < XCloseable > xClose( xDoc, UNO_QUERY );
                    if ( xClose.is() )
                        xClose->close( sal_True );
                    else
                    {
                        Reference < XComponent > xComp( xDoc, UNO_QUERY );
                        if ( xComp.is() )
                            xComp->dispose();
                    }
                }
                catch ( com::sun::star::util::CloseVetoException& )
                {
                }

                // request is completed
                OfficeIPCThread::RequestsCompleted( 1 );
            }
        }
    }

    if ( aDispatches.size() > 0 )
    {
        // Execute all asynchronous dispatches now after we placed them into our request container!
        Sequence < PropertyValue > aArgs( 2 );
        aArgs[0].Name = ::rtl::OUString::createFromAscii("Referer");
        aArgs[0].Value <<= ::rtl::OUString::createFromAscii("private:OpenEvent");
        aArgs[1].Name = ::rtl::OUString::createFromAscii("SynchronMode");
        aArgs[1].Value <<= sal_True;

        for ( sal_uInt32 n = 0; n < aDispatches.size(); n++ )
        {
            Reference< XDispatch > xDispatch = aDispatches[n].xDispatch;
            Reference < XNotifyingDispatch > xDisp( xDispatch, UNO_QUERY );
            if ( xDisp.is() )
                xDisp->dispatchWithNotification( aDispatches[n].aURL, aArgs, this );
            else
            {
                ::osl::ClearableMutexGuard aGuard( GetMutex() );
                m_nRequestCount--;
                aGuard.clear();
                xDispatch->dispatch( aDispatches[n].aURL, aArgs );
            }
        }
    }

    ::osl::ClearableMutexGuard aGuard( GetMutex() );
    m_nRequestCount--;

    // No more asynchronous requests?
    // The requests are removed from the request container after they called back to this
    // implementation via statusChanged!!
    if ( !m_nRequestCount /*m_aRequestContainer.empty()*/ )
    {
        // We have to check if we have an open task otherwise we have to shutdown the office.
        Reference< XFramesSupplier > xTasksSupplier( xDesktop, UNO_QUERY );
        aGuard.clear();

        Reference< XElementAccess > xList( xTasksSupplier->getFrames(), UNO_QUERY );

        if ( !xList->hasElements() )
        {
            // We don't have any task open so we have to shutdown ourself!!
            Reference< XDesktop > xDesktop( xTasksSupplier, UNO_QUERY );
            if ( xDesktop.is() )
                xDesktop->terminate();
        }
    }
}


void SAL_CALL DispatchWatcher::disposing( const ::com::sun::star::lang::EventObject& )
throw(::com::sun::star::uno::RuntimeException)
{
}


void SAL_CALL DispatchWatcher::dispatchFinished( const DispatchResultEvent& aEvent ) throw( RuntimeException )
{
    osl::ClearableMutexGuard aGuard( GetMutex() );
    sal_Int16 nCount = --m_nRequestCount;
    aGuard.clear();
    OfficeIPCThread::RequestsCompleted( 1 );
/*
    // Find request in our hash map and remove it as a pending request
    DispatchWatcherHashMap::iterator pDispatchEntry = m_aRequestContainer.find( rEvent.FeatureURL.Complete ) ;
    if ( pDispatchEntry != m_aRequestContainer.end() )
    {
        m_aRequestContainer.erase( pDispatchEntry );
        aGuard.clear();
        OfficeIPCThread::RequestsCompleted( 1 );
    }
    else
        aGuard.clear();
*/
    if ( !nCount && !OfficeIPCThread::AreRequestsPending() )
    {
        // We have to check if we have an open task otherwise we have to shutdown the office.
        Reference< XFramesSupplier > xTasksSupplier( ::comphelper::getProcessServiceFactory()->createInstance(
                                                    OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.frame.Desktop")) ),
                                                UNO_QUERY );
        Reference< XElementAccess > xList( xTasksSupplier->getFrames(), UNO_QUERY );

        if ( !xList->hasElements() )
        {
            // We don't have any task open so we have to shutdown ourself!!
            Reference< XDesktop > xDesktop( xTasksSupplier, UNO_QUERY );
            if ( xDesktop.is() )
                xDesktop->terminate();
        }
    }
}

}








