116 lines
6.1 KiB
C++
116 lines
6.1 KiB
C++
// --------------------------------------------------------------------------------
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// WebPage.h
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// Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved
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// Steven J. Bailey
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// --------------------------------------------------------------------------------
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#ifndef __WEBPAGE_H
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#define __WEBPAGE_H
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// -----------------------------------------------------------------------------
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// Forward Decls
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// -----------------------------------------------------------------------------
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class CVirtualStream;
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class CMessageTree;
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class CActiveUrlRequest;
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typedef class CActiveUrlRequest *LPURLREQUEST;
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typedef CMessageTree *LPMESSAGETREE;
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typedef struct tagTREENODEINFO *LPTREENODEINFO;
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// -----------------------------------------------------------------------------
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// PAGESEGMENT
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// -----------------------------------------------------------------------------
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typedef struct tagPAGESEGMENT *LPPAGESEGMENT;
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typedef struct tagPAGESEGMENT {
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DWORD cbOffset; // IStream Read / Seek Offset
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DWORD cbLength; // How long is this segment
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BYTE fLengthKnown; // Have I computed the length of this segment
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IStream *pStream; // The stream containing the data for this segment
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LPPAGESEGMENT pPrev; // The previous segment
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LPPAGESEGMENT pNext; // The next segment
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} PAGESEGMENT;
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// -----------------------------------------------------------------------------
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// CMessageWebPage
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// -----------------------------------------------------------------------------
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class CMessageWebPage : public IStream, public IMimeMessageCallback
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{
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public:
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// -------------------------------------------------------------------------
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// Construction
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// -------------------------------------------------------------------------
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CMessageWebPage(LPURLREQUEST pRequest);
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~CMessageWebPage(void);
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// -------------------------------------------------------------------------
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// IUnknown
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// -------------------------------------------------------------------------
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STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppvObject);
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STDMETHODIMP_(ULONG) AddRef(void);
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STDMETHODIMP_(ULONG) Release(void);
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// -------------------------------------------------------------------------
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// IStream
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// -------------------------------------------------------------------------
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STDMETHODIMP Read(LPVOID pvData, ULONG cbData, ULONG *pcbRead);
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STDMETHODIMP Seek(LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition);
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STDMETHODIMP Write(const void *, ULONG, ULONG *) { return TrapError(STG_E_ACCESSDENIED); }
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STDMETHODIMP SetSize(ULARGE_INTEGER) { return E_NOTIMPL; }
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STDMETHODIMP CopyTo(LPSTREAM, ULARGE_INTEGER, ULARGE_INTEGER *, ULARGE_INTEGER *) { return E_NOTIMPL; }
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STDMETHODIMP Stat(STATSTG *pStat, DWORD dw) { return E_NOTIMPL; }
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STDMETHODIMP Commit(DWORD) { return E_NOTIMPL; }
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STDMETHODIMP Revert(void) { return E_NOTIMPL; }
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STDMETHODIMP LockRegion(ULARGE_INTEGER, ULARGE_INTEGER, DWORD) { return E_NOTIMPL; }
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STDMETHODIMP UnlockRegion(ULARGE_INTEGER, ULARGE_INTEGER, DWORD) { return E_NOTIMPL; }
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STDMETHODIMP Clone(LPSTREAM *) { return E_NOTIMPL; }
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// ----------------------------------------------------------------------------
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// IMimeWebaPageCallback (Default Implementation if client doesn't specify)
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// ----------------------------------------------------------------------------
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STDMETHODIMP OnWebPageSplitter(DWORD cInlined, IStream *pStream);
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// -------------------------------------------------------------------------
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// CMessageWebPage Methods
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// -------------------------------------------------------------------------
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HRESULT Initialize(IMimeMessageCallback *pCallback, LPMESSAGETREE pTree, LPWEBPAGEOPTIONS pOptions);
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HRESULT OnBodyBoundToTree(LPMESSAGETREE pTree, LPTREENODEINFO pNode);
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HRESULT OnBindComplete(LPMESSAGETREE pTree);
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private:
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// -------------------------------------------------------------------------
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// Private Methods
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// -------------------------------------------------------------------------
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void _VFreeSegmentList(void);
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void _VFreeSegment(LPPAGESEGMENT pSegment);
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void _VAppendSegment(LPPAGESEGMENT pSegment);
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void _VInitializeCharacterSet(LPMESSAGETREE pTree);
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HRESULT _AllocateSegment(LPPAGESEGMENT *ppSegment, BOOL fCreateStream);
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HRESULT _GetInlineHtmlStream(LPMESSAGETREE pTree, LPTREENODEINFO pNode, LPSTREAM *ppStream);
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HRESULT _InlineTextBody(LPMESSAGETREE pTree, LPTREENODEINFO pNode, BOOL fSetParents);
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HRESULT _InlineImageBody(LPMESSAGETREE pTree, LPTREENODEINFO pNode);
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HRESULT _DoAttachmentLinks(LPMESSAGETREE pTree);
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HRESULT _DoSegmentSplitter(void);
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HRESULT _SetContentId(LPTREENODEINFO pNode, LPSTR pszCID, ULONG cchCID);
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HRESULT _ComputeStreamSize(LPDWORD pcbSize);
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HRESULT _DoSlideShow(LPMESSAGETREE pTree);
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private:
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// -------------------------------------------------------------------------
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// Private Data
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// -------------------------------------------------------------------------
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LONG m_cRef; // Reference count
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HCHARSET m_hCharset; // Character set of the message
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WEBPAGEOPTIONS m_rOptions; // WebPage Options
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LPURLREQUEST m_pRequest; // Url Request for root stream
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LPPAGESEGMENT m_pHeadSegment; // First Segment
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LPPAGESEGMENT m_pTailSegment; // Last Segment
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LPPAGESEGMENT m_pCurrSegment; // Current Segment
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DWORD m_cbOffset; // Stream Offset
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BYTE m_fComplete; // Has BindComplete been called
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DWORD m_cInline; // Number of inline bodies
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DWORD m_cSlideShow; // Number of images to put into a slide show
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IMimeMessageCallback *m_pCallback; // WebPage Callback
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CRITICAL_SECTION m_cs; // Critical Section for m_pStream
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};
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#endif // __WEBPAGE_H
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