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/*************************************************************************
 *
 * 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.
 *
 ************************************************************************/

#ifndef _DESKTOP_OFFICEIPCTHREAD_HXX_
#define _DESKTOP_OFFICEIPCTHREAD_HXX_

#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/frame/XTerminateListener.hpp>
#include <vos/pipe.hxx>
#include <osl/security.hxx>
#include <vos/signal.hxx>
#include <rtl/ustring.hxx>
#include <cppuhelper/implbase2.hxx>
#include <osl/conditn.hxx>
#include <osl/thread.hxx>
#include "boost/optional.hpp"

namespace desktop
{

class SalMainPipeExchangeSignalHandler : public vos::OSignalHandler
{
    virtual TSignalAction SAL_CALL signal(TSignalInfo *pInfo);
};

// A request for the current office
// that was given by command line or by IPC pipe communication.
struct ProcessDocumentsRequest
{
    ProcessDocumentsRequest(boost::optional< rtl::OUString > const & cwdUrl):
        aCwdUrl(cwdUrl), pcProcessed( NULL ) {}

    boost::optional< ::rtl::OUString > aCwdUrl;
    ::rtl::OUString aModule;
    ::rtl::OUString aOpenList;		// Documents that should be opened in the default way
    ::rtl::OUString aViewList;      // Documents that should be opened in viewmode
    ::rtl::OUString aStartList;     // Documents/Presentations that should be started
    ::rtl::OUString aPrintList;		// Documents that should be printed on default printer
    ::rtl::OUString aForceOpenList; // Documents that should be forced to open for editing (even templates)
    ::rtl::OUString aForceNewList;	// Documents that should be forced to create a new document
    ::rtl::OUString aPrinterName;	// The printer name that should be used for printing
    ::rtl::OUString aPrintToList;	// Documents that should be printed on the given printer
    ::rtl::OUString aConversionList;
    ::rtl::OUString aConversionParams;
    ::rtl::OUString aConversionOut;
    ::rtl::OUString aInFilter;
    ::osl::Condition *pcProcessed;  // pointer condition to be set when the request has been processed
};

class DispatchWatcher;
class OfficeIPCThread : public osl::Thread
{
  private:
    static OfficeIPCThread*		pGlobalOfficeIPCThread;
    static ::osl::Mutex*		pOfficeIPCThreadMutex;

    vos::OPipe					maPipe;
    vos::OStreamPipe			maStreamPipe;
    rtl::OUString				maPipeIdent;
    bool                        mbDowning;
    bool                        mbRequestsEnabled;
    int							mnPendingRequests;
    DispatchWatcher*			mpDispatchWatcher;

    /* condition to be set when the request has been processed */
    ::osl::Condition cProcessed;

    /* condition to be set when the main event loop is ready
       otherwise an error dialogs event loop could eat away
       requests from a 2nd office */
    ::osl::Condition cReady;

    static ::osl::Mutex&		GetMutex();
    static const char *sc_aTerminationSequence;
    static const int sc_nTSeqLength;
    static const char *sc_aShowSequence;
    static const int sc_nShSeqLength;
    static const char *sc_aConfirmationSequence;
    static const int sc_nCSeqLength;

    OfficeIPCThread();

  protected:
    /// Working method which should be overridden
    virtual void SAL_CALL run();

  public:
    enum Status
    {
        IPC_STATUS_OK,
        IPC_STATUS_2ND_OFFICE,
        IPC_STATUS_BOOTSTRAP_ERROR
    };

    virtual ~OfficeIPCThread();

    // controlling pipe communication during shutdown
    static void					SetDowning();
    static void                 EnableRequests( bool i_bEnable = true );
    static sal_Bool				AreRequestsPending();
    static void					RequestsCompleted( int n = 1 );
    static sal_Bool				ExecuteCmdLineRequests( ProcessDocumentsRequest& );

    // return FALSE if second office
    static Status				EnableOfficeIPCThread();
    static void					DisableOfficeIPCThread();
    // start dispatching events...
    static void                 SetReady(OfficeIPCThread* pThread = NULL);
    
    bool                        AreRequestsEnabled() const { return mbRequestsEnabled && ! mbDowning; }
};


class OfficeIPCThreadController : public ::cppu::WeakImplHelper2<
                                            ::com::sun::star::lang::XServiceInfo,
                                            ::com::sun::star::frame::XTerminateListener >
{
    public:
        OfficeIPCThreadController() {}
        virtual ~OfficeIPCThreadController() {}

        // XServiceInfo
        virtual ::rtl::OUString SAL_CALL getImplementationName()
            throw ( ::com::sun::star::uno::RuntimeException );
        virtual sal_Bool SAL_CALL supportsService( const ::rtl::OUString& ServiceName )
            throw ( ::com::sun::star::uno::RuntimeException );
        virtual ::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames()
            throw ( ::com::sun::star::uno::RuntimeException );

        // XEventListener
        virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source )
            throw( ::com::sun::star::uno::RuntimeException );

        // XTerminateListener
        virtual void SAL_CALL queryTermination( const ::com::sun::star::lang::EventObject& aEvent )
            throw( ::com::sun::star::frame::TerminationVetoException, ::com::sun::star::uno::RuntimeException );
        virtual void SAL_CALL notifyTermination( const ::com::sun::star::lang::EventObject& aEvent )
            throw( ::com::sun::star::uno::RuntimeException );
};

}

#endif // _DESKTOP_OFFICEIPCTHREAD_HXX_