Start wxWebRequestWinHTTP implementation

Can already run the GET request in the sample app

include/wx/webrequest.h

@@ -18,15 +18,29 @@
 #include "wx/object.h"
 #include "wx/scopedptr.h"
 #include "wx/sharedptr.h"
+#include "wx/stream.h"
 #include "wx/vector.h"
 
 class wxWebResponse;
 class wxWebSession;
 
+WX_DECLARE_STRING_HASH_MAP(wxString, wxWebRequestHeaderMap);
+
 class WXDLLIMPEXP_NET wxWebRequest : public wxEvtHandler, public wxRefCounter
 {
 public:
-    virtual void SetHeader(const wxString& name, const wxString& value) = 0;
+    enum State
+    {
+        State_Idle,
+        State_Active,
+        State_Ready,
+        State_Failed
+    };
+
+    virtual ~wxWebRequest() { }
+
+    virtual void SetHeader(const wxString& name, const wxString& value)
+    { m_headers[name] = value; }
 
     virtual void SetMethod(const wxString& method) = 0;
 
@@ -34,21 +48,50 @@ public:
 
     virtual void SetData(const wxInputStream& dataStream, const wxString& contentType) = 0;
 
-    virtual void SetIgnoreServerErrorStatus(bool ignore) = 0;
+    void SetIgnoreServerErrorStatus(bool ignore) { m_ignoreServerErrorStatus = ignore; }
 
     virtual void Start() = 0;
 
     virtual void Cancel() = 0;
 
-    virtual const wxWebResponse* GetResponse() const = 0;
+    virtual wxWebResponse* GetResponse() = 0;
+
+    int GetId() const { return m_id; }
+
+    State GetState() const { return m_state; }
+
+protected:
+    wxWebRequestHeaderMap m_headers;
+
+    wxWebRequest(int id):
+        m_id(id),
+        m_state(State_Idle),
+        m_ignoreServerErrorStatus(false) { }
+
+    void SetState(State state, const wxString& failMsg = "");
+
+    bool CheckServerStatus();
 
 private:
+    int m_id;
+    State m_state;
+    wxString m_failMessage;
+    bool m_ignoreServerErrorStatus;
+
+    void ProcessReadyEvent();
+
+    void ProcessFailedEvent();
+
     wxDECLARE_NO_COPY_CLASS(wxWebRequest);
 };
 
 class WXDLLIMPEXP_NET wxWebResponse
 {
 public:
+    virtual ~wxWebResponse() { }
+
+    virtual wxInt64 GetContentLength() const = 0;
+
     virtual wxString GetURL() const = 0;
 
     virtual wxString GetHeader(const wxString& name) const = 0;
@@ -57,10 +100,13 @@ public:
 
     virtual wxString GetStatusText() const = 0;
 
-    virtual wxInputStream& GetStream() const = 0;
+    virtual wxInputStream* GetStream() const = 0;
 
     virtual wxString AsString(wxMBConv* conv = NULL) const = 0;
 
+protected:
+    wxWebResponse() { }
+
 private:
     wxDECLARE_NO_COPY_CLASS(wxWebResponse);
 };
@@ -69,6 +115,8 @@ class WXDLLIMPEXP_NET wxWebSessionFactory
 {
 public:
     virtual wxWebSession* Create() = 0;
+
+    virtual ~wxWebSessionFactory() { }
 };
 
 WX_DECLARE_STRING_HASH_MAP(wxSharedPtr<wxWebSessionFactory>, wxStringWebSessionFactoryMap);
@@ -85,7 +133,10 @@ public:
 
     virtual wxWebRequest* CreateRequest(const wxString& url, int id = wxID_ANY) = 0;
 
-    virtual void SetHeader(const wxString& name, const wxString& value) = 0;
+    virtual void SetHeader(const wxString& name, const wxString& value)
+    { m_headers[name] = value; }
+
+    const wxWebRequestHeaderMap& GetHeaders() const { return m_headers; }
 
     static wxWebSession& GetDefault();
 
@@ -96,9 +147,10 @@ public:
     static bool IsBackendAvailable(const wxString& backend);
 
 protected:
-    wxWebSession() { }
+    wxWebSession();
 
 private:
+    wxWebRequestHeaderMap m_headers;
 
     static wxScopedPtr<wxWebSession> ms_defaultSession;
     static wxStringWebSessionFactoryMap ms_factoryMap;
@@ -120,6 +172,8 @@ public:
 
     const wxString& GetErrorDescription() const { return m_errorDescription; }
 
+    wxEvent* Clone() const wxOVERRIDE { return new wxWebRequestEvent(*this); }
+
 private:
     wxWebResponse* m_response;
     wxString m_errorDescription;