wxURL implementation using WinInet functions under Win32 (patch 839305)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@25562 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/setup0.h

@@ -435,6 +435,16 @@
 // Define this to use wxURL class.
 #define wxUSE_URL 1
 
+// Define this to use native platform url and protocol support.
+// Currently valid only for MS-Windows.
+// Note: if you set this to 1, you can open ftp/http/gopher sites
+// and obtain a valid input stream for these sites
+// even when you set wxUSE_PROTOCOL_FTP/HTTP to 0.
+// Doing so reduces the code size.
+//
+// This code is experimental and subject to change.
+#define wxUSE_URL_NATIVE 0
+
 // Support for regular expression matching via wxRegEx class: enable this to
 // use POSIX regular expressions in your code. You need to compile regex
 // library from src/regex to use it under Windows.

include/wx/url.h

@@ -37,6 +37,17 @@ typedef enum {
   wxURL_PROTOERR
 } wxURLError;
 
+#if wxUSE_URL_NATIVE
+class WXDLLIMPEXP_NET wxURL;
+
+class WXDLLIMPEXP_NET wxURLNativeImp : public wxObject
+{
+public:
+    virtual ~wxURLNativeImp() { }
+    virtual wxInputStream *GetInputStream(wxURL *owner) = 0;
+};
+#endif // wxUSE_URL_NATIVE
+
 class WXDLLIMPEXP_NET wxURL : public wxObject
 {
 public:
@@ -72,6 +83,14 @@ protected:
     wxHTTP *m_proxy;
 #endif // wxUSE_SOCKETS
 
+#if wxUSE_URL_NATIVE
+    friend class wxURLNativeImp;
+    // pointer to a native URL implementation object
+    wxURLNativeImp *m_nativeImp;
+    // Creates on the heap and returns a native 
+    // implementation object for the current platform.
+    static wxURLNativeImp *CreateNativeImpObject();
+#endif
     wxProtoInfo *m_protoinfo;
     wxProtocol *m_protocol;