/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   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 .
 */

#ifndef _ASYNCEVENTNOTIFIER_HXX_
#define _ASYNCEVENTNOTIFIER_HXX_

#include <osl/mutex.hxx>
#include <osl/conditn.hxx>
#include <cppuhelper/interfacecontainer.h>

#if defined _MSC_VER
#pragma warning(push, 1)
#endif
#include <windows.h>
#if defined _MSC_VER
#pragma warning(pop)
#endif

#include <list>
#include <utility>
#include "eventnotification.hxx"

//---------------------------------------------
//
//---------------------------------------------

class CAsyncEventNotifier
{
public:
    CAsyncEventNotifier(cppu::OBroadcastHelper& rBroadcastHelper);
    ~CAsyncEventNotifier();

    bool SAL_CALL startup(bool bCreateSuspended = true);
    void SAL_CALL shutdown();

    // notifications may be added the
    // the event queue but will only
    // be notified to the clients after
    // resume was called
    void suspend();

    // resume notifying events
    void resume();

    // this class is responsible for the memory management of
    // the CEventNotification instance
    void SAL_CALL notifyEvent(CEventNotification* EventNotification);

    void SAL_CALL addListener   (const ::com::sun::star::uno::Type&                                           aType    ,
                                 const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& xListener);
    void SAL_CALL removeListener(const ::com::sun::star::uno::Type&                                           aType    ,
                                 const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& xListener);

private:
    size_t              SAL_CALL getEventListSize();
    void                SAL_CALL resetNotifyEvent();
    CEventNotification* SAL_CALL getNextEventRecord();
    void                SAL_CALL removeNextEventRecord();

    void SAL_CALL run( );

    static unsigned int WINAPI ThreadProc(LPVOID pParam);

private:
    std::list<CEventNotification*>  m_EventList;
    HANDLE                          m_hThread;
    bool                            m_bRun;
    unsigned                        m_ThreadId;
    ::cppu::OBroadcastHelper&       m_rBroadcastHelper;
    HANDLE                          m_hEvents[2];
    HANDLE&                         m_NotifyEvent;
    HANDLE&                         m_ResumeNotifying;
    osl::Mutex                      m_Mutex;

// prevent copy and assignment
private:
    CAsyncEventNotifier( const CAsyncEventNotifier& );
    CAsyncEventNotifier& operator=( const CAsyncEventNotifier& );
};

#endif

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