passivsw.cpp

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 

// include
#include "hxtypes.h"
#include "hxwintyp.h"
#include "hxcom.h"
#include "hxwin.h"
#include "hxsite2.h"
// smlrendr
#include "passivsw.h"
// pndebug
#include "hxassert.h"
#include "hxheap.h"
#ifdef _DEBUG
#undef HX_THIS_FILE		
static const char HX_THIS_FILE[] = __FILE__;
#endif

CSmilPassiveSiteWatcher::CSmilPassiveSiteWatcher(CSmilPassiveSiteWatcherResponse* pResponse,
                                                 IHXSite*                        pSite)
{
    m_lRefCount = 0;
    m_pResponse = pResponse;
    m_pSite     = pSite;
    if (m_pResponse)
    {
        m_pResponse->AddRef();
    }
    if (m_pSite)
    {
        m_pSite->AddRef();
        // Add ourselves as a passive site watcher
        IHXPassiveSiteWatcher* pWatcher = NULL;
        QueryInterface(IID_IHXPassiveSiteWatcher, (void**) &pWatcher);
        if (pWatcher)
        {
            IHXSite2* pSite2 = NULL;
            m_pSite->QueryInterface(IID_IHXSite2, (void**) &pSite2);
            if (pSite2)
            {
                pSite2->AddPassiveSiteWatcher(pWatcher);
            }
            HX_RELEASE(pSite2);
        }
        HX_RELEASE(pWatcher);
    }
}

CSmilPassiveSiteWatcher::~CSmilPassiveSiteWatcher()
{
    Close();
}

STDMETHODIMP CSmilPassiveSiteWatcher::QueryInterface(REFIID riid, void** ppvObj)
{
    HX_RESULT retVal = HXR_OK;

    if (ppvObj)
    {
        if(IsEqualIID(riid, IID_IUnknown))
        {
            AddRef();
            *ppvObj = (IUnknown*) (IHXPassiveSiteWatcher*) this;
        }
        else if(IsEqualIID(riid, IID_IHXPassiveSiteWatcher))
        {
            AddRef();
            *ppvObj = (IHXPassiveSiteWatcher*) this;
        }
        else
        {
            *ppvObj = NULL;
            retVal  = HXR_NOINTERFACE;
        }
    }
    else
    {
        retVal = HXR_FAIL;
    }

    return retVal;
}

STDMETHODIMP_(ULONG32) CSmilPassiveSiteWatcher::AddRef()
{
    return InterlockedIncrement(&m_lRefCount);
}

STDMETHODIMP_(ULONG32) CSmilPassiveSiteWatcher::Release()
{
    if(InterlockedDecrement(&m_lRefCount) > 0)
    {
        return m_lRefCount;
    }

    delete this;
    return 0;
}

STDMETHODIMP CSmilPassiveSiteWatcher::PositionChanged(HXxPoint* pPoint)
{
    HX_RESULT retVal = HXR_OK;

    if (m_pResponse)
    {
        retVal = m_pResponse->SitePositionChanged(m_pSite, pPoint);
    }

    return retVal;
}

STDMETHODIMP CSmilPassiveSiteWatcher::SizeChanged(HXxSize* pSize)
{
    HX_RESULT retVal = HXR_OK;

    if (m_pResponse)
    {
        retVal = m_pResponse->SiteSizeChanged(m_pSite, pSize);
    }

    return retVal;
}

STDMETHODIMP CSmilPassiveSiteWatcher::Close()
{
    HX_RESULT retVal = HXR_OK;

    if (m_pSite)
    {
        // Release ourselves as a passive site watcher
        IHXPassiveSiteWatcher* pWatcher = NULL;
        QueryInterface(IID_IHXPassiveSiteWatcher, (void**) &pWatcher);
        if (pWatcher)
        {
            IHXSite2* pSite2 = NULL;
            m_pSite->QueryInterface(IID_IHXSite2, (void**) &pSite2);
            if (pSite2)
            {
                pSite2->RemovePassiveSiteWatcher(pWatcher);
            }
            HX_RELEASE(pSite2);
        }
        HX_RELEASE(pWatcher);
    }
    HX_RELEASE(m_pSite);
    if (m_pResponse)
    {
        m_pResponse->Release();
        m_pResponse = NULL;
    }

    return retVal;
}