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 * 
 * 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
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 *************************************************************/



#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 <vos/security.hxx>
#include <vos/thread.hxx>
#include <vos/signal.hxx>
#include <rtl/ustring.hxx>
#ifndef _CPPUHELPER_WEAKBASE2_HXX_
#include <cppuhelper/implbase2.hxx>
#endif
#include <osl/conditn.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
	::osl::Condition *pcProcessed;  // pointer condition to be set when the request has been processed
};

class DispatchWatcher;
class OfficeIPCThread : public vos::OThread
{
  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 sal_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_