shared source/wpf/src/host/shimimpl/bindstatuscallback.hxx

   1 //+-----------------------------------------------------------------------
   2 //
   3 //  Copyright (c) Microsoft Corporation.  All rights reserved.
   4 //
   5 //  Description:
   6 //     Defines the BindStatusCallback class of PresentationHost.
   7 //
   8 //  History
   9 //      2002/06/22-murrayw
  10 //          Created
  11 //      2007/09/20-[....]
  12 //          Ported Windows->DevDiv. See SourcesHistory.txt.
  13 //
  14 //------------------------------------------------------------------------
  15
  16 #pragma once
  17
  18 #define IO_BUFFER_SIZE  4096
  19
  20 class CBindStatusCallback : public IBindStatusCallback
  21 {
  22 public:
  23
  24     CBindStatusCallback();
  25     ~CBindStatusCallback();
  26
  27     LPCWSTR GetCacheFilename() const
  28     {
  29         return m_cacheFilename.Length() ? m_cacheFilename.GetValue() : 0;
  30     }
  31     HRESULT GetBindResult() const { return m_hrBindResult; }
  32
  33     //
  34     // IUnknown
  35     //
  36
  37     STDMETHODIMP QueryInterface(REFIID riid, __out LPVOID* ppReturn);
  38     STDMETHODIMP_(ULONG) AddRef();
  39     STDMETHODIMP_(ULONG) Release();
  40
  41     //
  42     // IBindStatusCallback methods
  43     //
  44
  45     STDMETHODIMP OnStartBinding(DWORD dwReserved, __in IBinding *pib);
  46     STDMETHODIMP GetPriority(__out_opt LONG *pnPriority);
  47     STDMETHODIMP OnLowResource(DWORD dwReserved);
  48     STDMETHODIMP OnProgress(ULONG ulProgress, ULONG ulProgressMax, ULONG ulStatusCode,
  49                             LPCWSTR szStatusText);
  50     STDMETHODIMP OnStopBinding(HRESULT hresult, LPCWSTR /* szError */);
  51     STDMETHODIMP GetBindInfo(__out DWORD *grfBINDF,
  52                              __out BINDINFO *pbindinfo);
  53     STDMETHODIMP OnDataAvailable(DWORD grfBSCF,
  54                                  DWORD dwSize,
  55                                  __in FORMATETC *pformatetc,
  56                                  __in STGMEDIUM  *pstgmed);
  57     STDMETHODIMP OnObjectAvailable(REFIID riid, __in IUnknown *punk);
  58
  59     BOOL IsXps() { return (m_Mime == MimeType_Xps); }
  60     MimeType GetMimeType() { return m_Mime; }
  61     STRING_PROP(MimeTypeString);
  62
  63     //
  64     // Data members
  65     //
  66
  67     IStream*        m_pStream;
  68     IFillLockBytes* m_pflb;
  69     HANDLE          m_hMimeArrivedEvent;        // Event triggers when mime arrives
  70     HANDLE          m_hManifestAvailableEvent;  // Event triggers when the manifest is ready
  71     class DownloadInfo*   m_pDownloadInfo;
  72     CString         m_cacheFilename;
  73
  74     //
  75     // Data members
  76     //
  77     MimeType    m_Mime;
  78     CString     m_strMimeTypeString;
  79     ULONG       m_nBytesTotal;
  80     ULONG       m_nBytesRead;
  81     BOOL        m_fTerminatedFLB;
  82     IBinding*   m_pib;
  83     int         m_nObjRefCount;
  84     HRESULT     m_hrBindResult;
  85
  86 private:
  87     void BindTerminated();
  88     void BindTerminated(HRESULT hr);
  89     void ResolveMimeTypeSecondChance(LPCWSTR pszLocalFile);
  90 };