Implement basic support for virtual file systems for the ie backend. Registering a temporary namespace allows us to use the existing wxFileSystem work to load virtual files.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/SOC2011_WEBVIEW@68326 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/webview_ie.h

@@ -23,6 +23,9 @@
 
 struct IHTMLDocument2;
 
+class wxFSFile;
+class wxFileSystem;
+
 class WXDLLIMPEXP_WEB wxWebViewIE : public wxWebView
 {
 public:
@@ -157,6 +160,65 @@ private:
 
 };
 
+class VirtualProtocol : public IInternetProtocol
+{
+protected:
+    ULONG m_refCount;
+    IInternetProtocolSink* m_protocolSink;
+    wxString m_html;
+    VOID * fileP;
+
+    wxFSFile* m_file;
+    wxFileSystem* m_fileSys;
+
+public:
+    VirtualProtocol();
+    ~VirtualProtocol();
+
+    //IUnknown
+    ULONG STDMETHODCALLTYPE AddRef();
+    HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject);
+    ULONG STDMETHODCALLTYPE Release();
+
+    //IInternetProtocolRoot
+    HRESULT STDMETHODCALLTYPE Abort(HRESULT hrReason, DWORD dwOptions)
+                                   { return E_NOTIMPL; }
+    HRESULT STDMETHODCALLTYPE Continue(PROTOCOLDATA *pProtocolData)
+                                       { return S_OK; }
+    HRESULT STDMETHODCALLTYPE Resume() { return S_OK; }
+    HRESULT STDMETHODCALLTYPE Start(LPCWSTR szUrl, 
+                                    IInternetProtocolSink *pOIProtSink,
+                                    IInternetBindInfo *pOIBindInfo, 
+                                    DWORD grfPI, 
+                                    HANDLE_PTR dwReserved);
+    HRESULT STDMETHODCALLTYPE Suspend() { return S_OK; }
+    HRESULT STDMETHODCALLTYPE Terminate(DWORD dwOptions) { return S_OK; }
+
+    //IInternetProtocol
+    HRESULT STDMETHODCALLTYPE LockRequest(DWORD dwOptions) { return S_OK; }
+    HRESULT STDMETHODCALLTYPE Read(void *pv, ULONG cb, ULONG *pcbRead);
+    HRESULT STDMETHODCALLTYPE Seek(LARGE_INTEGER dlibMove, DWORD dwOrigin, 
+                                   ULARGE_INTEGER* plibNewPosition) 
+                                   { return E_FAIL; }
+    HRESULT STDMETHODCALLTYPE UnlockRequest() { return S_OK; }
+};
+
+class ClassFactory : public IClassFactory
+{
+private:
+    ULONG m_refCount;
+public:
+    //IUnknown
+    ULONG STDMETHODCALLTYPE AddRef();
+    HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject);
+    ULONG STDMETHODCALLTYPE Release();
+
+    //IClassFactory
+    HRESULT STDMETHODCALLTYPE CreateInstance(IUnknown* pUnkOuter, 
+                                             REFIID riid, void** ppvObject);
+    HRESULT STDMETHODCALLTYPE LockServer(BOOL fLock);
+};
+
 #endif // wxUSE_WEBVIEW_IE
 
 #endif // wxWebViewIE_H