ioleobj.cpp

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/*
 * IOLEOBJ.CPP
 * Cosmo Chapter 23
 *
 * Implementation of the IOleObject interface for Polyline.
 *
 * Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved
 *
 * Kraig Brockschmidt, Microsoft
 * Internet  :  [e-mail]
 * Compuserve:  >INTERNET:[e-mail]
 */


#include "cosmo.h"


/*
 * CImpIOleObject::CImpIOleObject
 * CImpIOleObject::~CImpIOleObject
 *
 * Parameters (Constructor):
 *  pObj            PCFigure of the object we're in.
 *  pUnkOuter       LPUNKNOWN to which we delegate.
 */

CImpIOleObject::CImpIOleObject(PCFigure pObj, LPUNKNOWN pUnkOuter)
    {
    m_cRef=0;
    m_pObj=pObj;
    m_pUnkOuter=pUnkOuter;
    return;
    }

CImpIOleObject::~CImpIOleObject(void)
    {
    return;
    }



/*
 * CImpIOleObject::QueryInterface
 * CImpIOleObject::AddRef
 * CImpIOleObject::Release
 */

STDMETHODIMP CImpIOleObject::QueryInterface(REFIID riid, PPVOID ppv)
    {
    return m_pUnkOuter->QueryInterface(riid, ppv);
    }

STDMETHODIMP_(ULONG) CImpIOleObject::AddRef(void)
    {
    ++m_cRef;
    return m_pUnkOuter->AddRef();
    }

STDMETHODIMP_(ULONG) CImpIOleObject::Release(void)
    {
    --m_cRef;
    return m_pUnkOuter->Release();
    }





/*
 * CImpIOleObject::SetClientSite
 *
 * Purpose:
 *  Provides the object with a pointer to the IOleClient site
 *  representing the container in which this object resides.
 *
 * Parameters:
 *  pIOleClientSite LPOLECLIENTSITE to the container's interface.
 *
 * Return Value:
 *  HRESULT         NOERROR
 */

STDMETHODIMP CImpIOleObject::SetClientSite
    (LPOLECLIENTSITE pIOleClientSite)
    {
    if (NULL!=m_pObj->m_pIOleClientSite)
        m_pObj->m_pIOleClientSite->Release();

    m_pObj->m_pIOleClientSite=pIOleClientSite;
    m_pObj->m_pIOleClientSite->AddRef();
    return NOERROR;
    }





/*
 * CImpIOleObject::GetClientSite
 *
 * Purpose:
 *  Asks the object for the client site provided in SetClientSite.
 *  If you have not seen SetClientSite yet, return a NULL in
 *  ppIOleClientSite.
 *
 * Parameters:
 *  ppSite          LPOLECLIENTSITE * in which to store the
 *                  pointer.
 *
 * Return Value:
 *  HRESULT         NOERROR
 */

STDMETHODIMP CImpIOleObject::GetClientSite(LPOLECLIENTSITE
    *ppSite)
    {
    //Be sure to AddRef the new pointer you are giving away.
    *ppSite=m_pObj->m_pIOleClientSite;
    m_pObj->m_pIOleClientSite->AddRef();

    return NOERROR;
    }





/*
 * CImpIOleObject::SetHostNames
 *
 * Purpose:
 *  Provides the object with names of the container application and
 *  the object in the container to use in object user interface.
 *
 * Parameters:
 *  pszApp          LPCOLESTR of the container application.
 *  pszObj          LPCOLESTR of some name useful in window titles.
 *
 * Return Value:
 *  HRESULT         NOERROR
 */

STDMETHODIMP CImpIOleObject::SetHostNames(LPCOLESTR pszApp
    , LPCOLESTR pszObj)
    {
    m_pObj->m_fEmbedded=TRUE;
   #ifdef WIN32ANSI
    char        szApp[80], szObj[80];

    szApp[0]=0;
    szObj[0]=0;

    if (NULL!=pszApp)
        {
        WideCharToMultiByte(CP_ACP, 0, pszApp, -1, szApp, 80
            , NULL, NULL);
        }

    if (NULL!=pszObj)
        {
        WideCharToMultiByte(CP_ACP, 0, pszObj, -1, szObj, 80
            , NULL, NULL);
        }

    m_pObj->m_pFR->UpdateEmbeddingUI(TRUE, m_pObj->m_pDoc
        , szApp, szObj);
   #else
    m_pObj->m_pFR->UpdateEmbeddingUI(TRUE, m_pObj->m_pDoc
        , pszApp, pszObj);
   #endif
    return NOERROR;
    }






/*
 * CImpIOleObject::Close
 *
 * Purpose:
 *  Forces the object to close down its user interface and unload.
 *
 * Parameters:
 *  dwSaveOption    DWORD describing the circumstances under which
 *                  the object is being saved and closed.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::Close(DWORD dwSaveOption)
    {
    HWND        hWnd;
    BOOL        fSave=FALSE;

    hWnd=m_pObj->m_pDoc->Window();

    //If object is dirty and we're asked to save, save it and close.
    if (OLECLOSE_SAVEIFDIRTY==dwSaveOption && m_pObj->FIsDirty())
        fSave=TRUE;

    /*
     * If asked to prompt, only do so if dirty, then if we get a
     * YES, save as usual and close.  On NO, just close.  On
     * CANCEL return OLE_E_PROMPTSAVECANCELLED.
     */
    if (OLECLOSE_PROMPTSAVE==dwSaveOption && m_pObj->FIsDirty())
        {
        UINT        uRet;

        uRet=MessageBox(hWnd, (*m_pObj->m_pST)[IDS_CLOSECAPTION]
            , (*m_pObj->m_pST)[IDS_CLOSEPROMPT], MB_YESNOCANCEL);

        if (IDCANCEL==uRet)
            return ResultFromScode(OLE_E_PROMPTSAVECANCELLED);

        if (IDYES==uRet)
            fSave=TRUE;
        }

    if (fSave)
        {
        m_pObj->SendAdvise(OBJECTCODE_SAVEOBJECT);
        m_pObj->SendAdvise(OBJECTCODE_SAVED);
        }

    //We get directly here on OLECLOSE_NOSAVE.
    PostMessage(hWnd, WM_CLOSE, 0, 0L);
    return NOERROR;
    }





/*
 * CImpIOleObject::SetMoniker
 *
 * Purpose:
 *  Informs the object of its moniker or its container's moniker
 *  depending on dwWhich.
 *
 * Parameters:
 *  dwWhich         DWORD describing whether the moniker is the
 *                  object's or the container's.
 *  pmk             LPMONIKER with the name.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::SetMoniker(DWORD dwWhich
    , LPMONIKER pmk)
    {
    LPMONIKER       pmkFull;
    HRESULT         hr=ResultFromScode(E_FAIL);

    /*
     * For an embedded object we might be living in a container that
     * has given us away as a link.  This is our indication to
     * register the full moniker for this object that we obtain from
     * IOleClientSite::GetMoniker(OLEWHICHMK_FULL).
     */

    if (NULL!=m_pObj->m_pIOleClientSite)
        {
        hr=m_pObj->m_pIOleClientSite->GetMoniker
            (OLEGETMONIKER_ONLYIFTHERE, OLEWHICHMK_OBJFULL
            , &pmkFull);
        }

    if (SUCCEEDED(hr))
        {
        /*
         * If this moniker is already running then we don't
         * need to revoke and re-register the same thing again.
         */
        if (NOERROR==pmkFull->IsRunning(NULL, NULL, NULL))
            {
            pmkFull->Release();
            return NOERROR;
            }

        //This will revoke the old one if m_dwRegROT is nonzero.
        INOLE_RegisterAsRunning(m_pObj, pmkFull
            , 0, &m_pObj->m_dwRegROT);

        //Inform clients of the new moniker
        if (NULL!=m_pObj->m_pIOleAdviseHolder)
            m_pObj->m_pIOleAdviseHolder->SendOnRename(pmkFull);

        pmkFull->Release();
        }

    return hr;
    }





/*
 * CImpIOleObject::GetMoniker
 *
 * Purpose:
 *  Asks the object for a moniker that can later be used to
 *  reconnect to it.
 *
 * Parameters:
 *  dwAssign        DWORD determining how to assign the moniker to
 *                  to the object.
 *  dwWhich         DWORD describing which moniker the caller wants.
 *  ppmk            LPMONIKER * into which to store the moniker.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::GetMoniker(DWORD dwAssign
    , DWORD dwWhich, LPMONIKER * ppmk)
    {
    HRESULT         hr=ResultFromScode(E_FAIL);

    *ppmk=NULL;

    /*
     * When we support linking we either return our file moniker if
     * we're linked, or out full moniker from the container if we're
     * embedded.
     */

    if (NULL!=m_pObj->m_pMoniker)
        {
        *ppmk=m_pObj->m_pMoniker;       //Document file moniker
        m_pObj->m_pMoniker->AddRef();
        }
    else
        {
        //Get the full container:object moniker if we're embedded
        if (NULL!=m_pObj->m_pIOleClientSite)
            {
            hr=m_pObj->m_pIOleClientSite->GetMoniker
                (OLEGETMONIKER_ONLYIFTHERE, OLEWHICHMK_OBJFULL
                , ppmk);
            }
        }

    return (NULL!=*ppmk) ? NOERROR : hr;
    }





/*
 * CImpIOleObject::InitFromData
 *
 * Purpose:
 *  Initializes the object from the contents of a data object.
 *
 * Parameters:
 *  pIDataObject    LPDATAOBJECT containing the data.
 *  fCreation       BOOL indicating if this is part of a new
 *                  creation. If FALSE, the container is trying
 *                  to paste here.
 *  dwReserved      DWORD reserved.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::InitFromData(LPDATAOBJECT pIDataObject
    , BOOL fCreation, DWORD dwReserved)
    {
    BOOL    fRet;

    /*
     * If we get a data object here, try to paste from it.  If
     * you've written clipboard code already, this is a snap.
     * We don't really care about fCreation or not since pasting
     * in us blasts away whatever is already here.
     */
    fRet=m_pObj->m_pDoc->PasteFromData(pIDataObject);
    return fRet ? NOERROR : ResultFromScode(E_FAIL);
    }





/*
 * CImpIOleObject::GetClipboardData
 *
 * Purpose:
 *  Returns an IDataObject pointer to the caller representing what
 *  would be on the clipboard if the server did an Edit/Copy using
 *  OleSetClipboard.
 *
 * Parameters:
 *  dwReserved      DWORD reserved.
 *  ppIDataObj      LPDATAOBJECT * into which to store the
 *                  pointer.
 *
 * Return Value:
 *  HRESULT         NOERROR or a general error value.
 */

STDMETHODIMP CImpIOleObject::GetClipboardData(DWORD dwReserved
    , LPDATAOBJECT *ppIDataObj)
    {
    /*
     * Again, if you have a function to create a data object for the
     * clipboard, this is a simple implementation.  The one we have
     * does all the compound document formats already.
     */
    *ppIDataObj=m_pObj->m_pDoc->TransferObjectCreate(FALSE);
    return (NULL!=*ppIDataObj) ? NOERROR : ResultFromScode(E_FAIL);
    }





/*
 * CImpIOleObject::DoVerb
 *
 * Purpose:
 *  Executes an object-defined action.
 *
 * Parameters:
 *  iVerb           LONG index of the verb to execute.
 *  pMSG            LPMSG describing the event causing the
 *                  activation.
 *  pActiveSite     LPOLECLIENTSITE to the site involved.
 *  lIndex          LONG the piece on which execution is happening.
 *  hWndParent      HWND of window in which the object can play
 *                  in-place.